Document:

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                                                                   EXHIBIT 10.34

                             [INFORMAX LETTERHEAD]

INFORMAX

PRIVILEGED COMMUNICATION

Steve Lincoln
725 Sapphire Street
Redwood City, CA

October 18, 2000

Dear Steve:

We are very pleased that you have decided to join the InforMax team! This letter
conveys our understanding with you concerning your employment with InforMax,
Inc. (the "Company").

1.      You will be employed as a Senior Vice President, Life Science
        Informatics reporting to the Chief Operating Officer. Your effective
        start date will be agreed to within 5 working days from the date of this
        letter.

2.      We have discussed with you our corporate vision and strategic plan and
        have indicated that your initial efforts will be directed at building a
        business line which focuses on creating high value-added information
        using InforMax's proprietary software, publicly available data and
        making extensive use of third party collaborations. The critical
        elements we have agreed upon include the following technical/product
        elements: platform; aggregation of data; annotation of data, curation of
        data; analytic tools and query functionality. In addition we have
        identified the importance of third party data content providers and
        channeling to a coherent business strategy. We have identified the
        following problem areas to be addressed in the development of this
        business line which we together believe will increase the probability of
        success: the perception that content is "free stuff"; passing on of high
        development and production costs has produced high prices which are a
        barrier to success; management; and having access to distribution
        channels.

3.      In addition to building this business line, you will be a member of the
        management team and will be expected to help guide our corporate vision
        and direction.

4.      Your base salary shall be $200,000 per annum payable in 24 semi-monthly
        installments.

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        You will be eligible for an annual performance-based bonus of up to
        $100,000. We will determine the metrics for this bonus within 60 days of
        your start date and after you have provided us with a draft work plan.

5.      You will be granted 165,000 incentive stock options under the Company's
        Equity Incentive Compensation Plan at an exercise price at the Fair
        Market Value as of your start date. 100,000 shall vest at a rate of
        1/48th (2,083) per month commencing one month after your start date.
        65,000 shall begin vesting after one year and will vest at 1,389 per
        month over the next three years.

6.      You will receive the standard Company benefit plan, which includes
        health, dental, life, and disability insurance, a 401 K-retirement plan
        eligibility and a three-week paid vacation. In addition the Company will
        provide you with a $500 per month car allowance, a laptop computer and
        should you require it a computer for your home.

7.      The Company will reimburse you for reasonable moving expenses and will
        reimburse you for temporary housing associated with your move here. If
        you should voluntarily leave the Company within 90 days of relocation,
        you will repay to the Company all relocation expenses for which you have
        been reimbursed.

8.      All approved and appropriately documented expenses will be reimbursed
        promptly.

9.      As a condition of employment, you will be required to sign the Company's
        confidentiality, non-competition, non-solicitation, non-hire agreements
        (attached). The non-competition portion of this agreement is directly
        linked to your severance pay provided that if you resign within the
        first six months of your employ or are terminated for cause then the
        non-compete extends for a period of one year from your termination date
        as described in that agreement.

10.     You understand that you are an at-will employee and that you may be
        terminated, at any time, with or without cause. Should you be terminated
        without cause, you will receive severance equal to the number of months
        employed by InforMax up to a maximum of one year's base pay. If you
        should resign or be terminated for cause you shall receive all
        compensation due you through the termination date.

If the above correctly describes our understanding, please sign this letter and
return to me.

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Welcome to the most energetic, committed bio-informatics Company in the world!

Sincerely,

/s/ James E. Bernstein

James E. Bernstein
EVP and Chief Operating Officer

This letter accurately reflects my understanding of the terms of my employment
with InforMax.

Accepted and Acknowledged:

      /s/ Steve Lincoln
-------------------------------
Steve Lincoln
Date:        10-18-00
     --------------------------

                                       3
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STEVE LINCOLN:                    CONFIDENTIAL INFORMATION, NON-COMPETITION,
                                  NON-SOLICITATION AND INVENTIONS AGREEMENT

This agreement (the "Agreement") is between INFORMAX, INC. (the "Company) and
Steve Lincoln ("Employee") and the employment of Employee by the Company is
conditioned upon the covenants and agreements contained herein. In consideration
of the promises and the respective covenants and agreements of the parties
contained herein, and of the continued employment of Employee by the Company,
the parties hereto, intending to by legally bound, do hereby agree as follows:

1.      PROTECTION OF TRADE SECRETS AND CONFIDENTIAL INFORMATION.

(a)     DEFINITION OF "CONFIDENTIAL INFORMATION." "Confidential Information"
        means all nonpublic information concerning or arising from the Company's
        business, including but not limited to, any and all trade secrets used,
        developed or acquired by the Company in connection with its business;
        information concerning the manner and details of the Company's
        operation, organization and management; financial information and/or
        documents and nonpublic policies, procedures and other printed or
        written material generated or used in connection with the Company's
        business; the Company's business plans and strategies; the identities of
        the Company's customers and the specific individual customer
        representatives with whom the Company works; the details of the
        Company's relationship with such customers and customer representatives;
        the identities of distributors, contractors and vendors utilized in the
        Company's business; the details of the Company's relationship with such
        distributors, contractors and vendors; the nature of fees and charges
        made to the Company's customers; nonpublic forms, contracts and other
        documents used in the Company's business; the nature and content of
        computer software, object code, source code used in the Company's
        business, whether proprietary to the Company or used by the Company
        under license from a third party; and all other information concerning
        the Company's concepts, prospects, customers, employees, contractors,
        earnings, products, services, equipment, systems, and/or prospective and
        executed contracts and other business arrangements. Confidential
        Information specifically excludes any particular information that, as
        evidenced by written documentation: (i) is or becomes publicly known
        without violation of this Agreement; (ii) is already known to Employee
        or others in the Same Business (as hereinafter defined) without
        restriction as of the time of its disclosure; (iii) is independently
        developed by Employee without reference to the Confidential Information;
        or (iv) is any information which becomes known to the Employee through
        relationships with the organizations cited in Schedule A, and which
        information may be subject to other non-disclosure agreements to which
        the employee is or becomes obligated.

                                       4
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(b)     EMPLOYEE'S USE OF CONFIDENTIAL INFORMATION. Except in connection with
        and in furtherance of Employee's work on the Company's behalf, Employee
        shall not, without the Company's prior consent, at any time, directly or
        indirectly, use, disclose or otherwise communicate any Confidential
        Information to any person or entity.

(c)     ACKNOWLEDGMENTS. Employee acknowledges that during the term of this
        Agreement, Employee will have access to Confidential Information, all of
        which shall be made accessible to Employee only in strict confidence;
        that unauthorized disclosure of Confidential Information may damage the
        Company business; that Confidential Information could be susceptible to
        immediate competitive application by a competitor of the Company, that
        the Company's business is substantially dependent on access to and the
        continuing secrecy of Confidential Information; that Confidential
        Information is unique to the Company and known only to Employee, the
        Company and certain key employees and contractors of the Company; that
        the Company shall at all times retain ownership and control of all
        Confidential Information; and that the restrictions contained in this
        paragraph are reasonable and necessary for the protection of the
        Company's business.

(d)     RECORDS CONTAINING CONFIDENTIAL INFORMATION. All documents or other
        records containing or reflecting Confidential Information ("Confidential
        Documents") prepared by or provided to Employee are and shall remain the
        Company's property. Except with the Company's prior written consent,
        Employee shall not copy or use any Confidential Document for any purpose
        not relating to Employee's work on the Company's behalf, or use,
        disclose or sell any Confidential Document to any party other than the
        Company. Upon the termination of this Agreement or upon the Company's
        request, Employee shall immediately deliver to the Company or its
        designee (and shall not keep in Employee's possession or deliver to
        anyone else) all Confidential Documents and all other Confidential
        Information and property belonging to the Company. This paragraph shall
        not bar Employee from complying with any subpoena or court order,
        provided that Employee shall at the earliest practicable date provide a
        copy of the subpoena or court order to the Company's President.

(e)     THIRD-PARTIES' CONFIDENTIAL INFORMATION. Employee acknowledges that the
        Company has received, and in the future will receive from third parties,
        confidential or proprietary information, and that the Company must
        maintain the confidentiality of such information and use it only for
        proper purposes. Employee shall not use or disclose any such information
        except as permitted by the Company or the third party to whom the
        information belongs.

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(f)     EMPLOYEE'S FORMER EMPLOYERS' CONFIDENTIAL INFORMATION. Employee shall
        not, during Employee's employment with the Company, improperly use or
        disclose to the Company any proprietary information or trade secrets
        belonging to any former employer or any third party as to whom Employee
        owes a duty of nondisclosure.

2.      NON-HIRE. Employee agrees that during the term of his employment and for
        a period of one (1) year after termination of Employee's employment with
        the Company:

(a)

(b)     Employee shall not, directly or indirectly, hire or engage or attempt to
        hire or engage any individual who shall have been a consultant or
        employee of the Company as of the date Employee's employment is
        terminated or at any time during the one (1)-year period prior to such
        date, whether for or on behalf of Employee or for any entity in which
        Employee shall have a direct or indirect interest (or any subsidiary or
        affiliate of any such entity), whether as a proprietor, partner,
        co-venturer, financier, investor or stockholder, director, officer,
        employer, employee, consultant, servant agent, representative or
        otherwise.

3.      NON-COMPETITION: NON-SOLICITATION.

(a)     Employee hereby agrees that during the term of his employment, Employee
        will not without written agreement of the Company, directly or
        indirectly, on Employee's behalf or in the service or on behalf of
        others, render or be retained to render services, whether as an officer,
        partner, trustee, consultant, or employee, to or for or on behalf of any
        business engaged in the Same Business (as hereinafter defined) as the
        Company, with the specific exception of any business listed in Schedule
        A. As used in this Agreement, the term "Same Business" means any
        business that offers bioinformatics technology products or services in
        which the primary application of such products or services is the
        organization, analysis and interpretation of genomic, proteomic or
        biomolecular data or that offers value-added information and databases
        in these areas.

(b)     Employee hereby agrees that during the term of his employment, Employee
        will not without written agreement of the Company, directly, indirectly
        or in concert with any other person or entity, (whether for or on behalf
        of Employee or for any entity in which Employee shall have a direct or
        indirect interest (or any subsidiary or affiliate of any such entity),
        whether as a proprietor, partner, co-venturer, financier, investor or
        stockholder, director, officer, employer, employee, consultant, servant,
        agent, representative or otherwise), solicit, attempt to solicit,
        service or attempt to service, any entity or

                                       6
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        individual who (i) is a customer of the Company at the time Employee's
        employment is terminated, (ii) was a customer of the Company during the
        one (1)-year period preceding the date Employee's employment is
        terminated, or (iii) is, at the time Employee's employment is
        terminated, a prospective customer of the Company. Employee's activities
        on behalf of any person or entity listed in Schedule A are hereby
        specifically exempted from this provision at all times.

(c)     In the event that (i) Employee voluntarily terminates his employment
        with the Company within one hundred eighty (180) days of the
        commencement of his employment, or (ii) if the Employee's employment is
        terminated by the Company at any time for Cause (as hereinafter
        defined), then Employee hereby agrees that for a period of one (1) year
        following the date of either such termination Employee will not without
        written agreement of the Company, directly or indirectly, on Employee's
        behalf or in the service or on behalf of others, render or be retained
        to render services, whether as an officer, partner, trustee, consultant,
        or employee, to or for or on behalf of any business engaged in the Same
        Business as the Company, with the specific exception of any business
        listed in Schedule A. As used in this Agreement, the term "Cause" shall
        mean (i) theft, fraud, dishonesty or gross negligence in the conduct of
        the Company's business, (ii) continuing neglect of Employee's duties and
        responsibilities which has a material adverse effect on the business and
        operation of the Company, or (iii) conviction of a felony.

(d)     In the event that (i) Employee voluntarily terminates his employment
        with the Company within one hundred eighty (180) days of the
        commencement of his employment, or (ii) if the Employee's employment is
        terminated by the Company at any time for Cause (as defined above), then
        Employee hereby agrees that for a period of one (1) year following the
        date of either such termination Employee will not without written
        agreement of the Company, directly, indirectly or in concert with any
        other person or entity, (whether for or on behalf of Employee or for any
        entity in which Employee shall have a direct or indirect interest (or
        any subsidiary or affiliate of any such entity), whether as a
        proprietor, partner, co-venturer, financier, investor or stockholder,
        director, officer, employer, employee, consultant, servant, agent,
        representative or otherwise), solicit, attempt to solicit, service or
        attempt to service, any entity or individual who (i) is a customer of
        the Company at the time Employee's employment is terminated, (ii) was a
        customer of the Company during the one (1)-year period preceding the
        date Employee's employment is terminated, or (iii) is, at the time
        Employee's employment is terminated, a prospective customer of the
        Company. Employee's activities on behalf of any person or entity listed
        in Schedule A are hereby specifically exempted from this provision at
        all times.

                                       7
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(e)     In the event that (i) Employee voluntarily terminates his employment
        with the Company at any time after the initial one hundred eighty (180)
        days of his employment, or (ii) if the Employee's employment is
        terminated without Cause, then Employee hereby agrees that Employee will
        not, directly or indirectly, on Employee's behalf or in the service or
        on behalf of others, render or be retained to render services, whether
        as an officer, partner, trustee, consultant, or employee, to or for or
        on behalf of any business engaged in the Same Business as the Company,
        with the specific exception of any business listed in Schedule A,
        provided that Employee shall only refrain from such activities for that
        period of time in which the Company makes severance payments to Employee
        as is set forth in the terms of that certain offer letter-dated as of
        October __, 2000 or for a longer period if it so chooses up to one year.

(f)     In the event that (i) Employee voluntarily terminates his employment
        with the Company at any time after the initial one hundred eighty (180)
        days of his employment, or (ii) if the Employee's employment is
        terminated without Cause, then Employee hereby agrees that Employee will
        not without written permission of the Company, directly, indirectly or
        in concert with any other person or entity, (whether for or on behalf of
        Employee or for any entity in which Employee shall have a direct or
        indirect interest (or any subsidiary or affiliate of any such entity),
        whether as a proprietor, partner, co-venturer, financier, investor or
        stockholder, director, officer, employer, employee, consultant, servant,
        agent, representative or otherwise), solicit, attempt to solicit,
        service or attempt to service, any entity or individual who (i) is a
        customer of the Company at the time Employee's employment is terminated,
        (ii) was a customer of the Company during the one (1)-year period
        preceding the date Employee's employment is terminated, or (iii) is, at
        the time Employee's employment is terminated, a prospective customer of
        the Company. Employee's activities on behalf of any person or entity
        listed in Schedule A are hereby specifically exempted from this
        provision at all times.

4.      INVENTIONS: ASSIGNMENT.

(a)     DISCLOSURE. Upon the Company's request, Employee shall promptly disclose
        to the Company, in a manner specified by the Company in its sole
        discretion, all ideas, information, processes, trademarks and service
        marks, discoveries, and improvements to any of the foregoing, that
        Employee learns of, conceives or creates alone or with others (whether
        or not conceived, developed or created during regular working hours)
        that directly or indirectly arises from or relates to (i) work performed
        for the Company by Employee or any other Company employee; (ii) use of
        the Company's property or time; (iii) access to the Company's
        Confidential Information and/or Confidential Documents. Any ideas,
        information, processes, trademarks and service marks, discoveries, and
        improvements to any of the foregoing which Employee learns

                                       8
<PAGE>

        of, conceives or creates with as part of any communication or
        relationship with any organization listed in Schedule A is specifically
        excluded from this requirement and such information, processes,
        trademarks and service marks, discoveries, and improvements may be the
        intellectual property of these other organizations.

(b)     ASSIGNMENT. Employee shall assign to the Company, without further
        consideration, Employee's entire right to any concept, idea or invention
        described in the preceding subparagraph and in all Confidential
        Information and Confidential Documents, all of which shall be the sole
        and exclusive property of the Company whether or not subject to patent,
        copyright, trademark or trade secret protection under applicable law.
        Employee also acknowledges that all works provided by Employee (solely
        or jointly with other) within the scope of Employee's employment are
        "works made for hire" as that terra is defined in the United States
        Copyright Act (17 U.S.C. Section 101). To the extent that any such
        works, by operation of law, cannot be "works made for hire," Employee
        hereby irrevocably transfers and assigns to the Company all right,
        title, and interest in and to such works and to any related copyrights.

(c)     ADDITIONAL INSTRUMENTS. Employee shall promptly execute, acknowledge and
        deliver to the Company all additional instruments or documents deemed at
        any time by the Company in its sole discretion to be necessary to carry
        out the intentions of this Section 4.

5.      SURVIVAL.

        Employee's obligations of non-disclosure as set forth in Section 1
        herein shall survive the termination of Employee's employment and shall
        thereafter be enforceable whether or not such termination is later
        claimed or found to be wrongful or to constitute or result in a breach
        of any contract or of any other duty owned or claimed to be owned by the
        Company to Employee.

6.      REMEDIES.

        Employee acknowledges that upon a breach of any obligation under this
        Agreement, the Company will suffer immediate and irreparable harm and
        damage for which money alone cannot fully compensate the Company.
        Employee therefore agrees that upon such breach of any obligation under
        this Agreement, the Company shall be entitled to obtain a temporary
        restraining order, preliminary injunction, permanent injunction or other
        injunctive relief, without posting any bond or other security, barring
        Employee from violating any provision of this Agreement. This paragraph
        shall not be construed as an election of any remedy, or as a waiver of
        any right available to the Company under this Agreement or the law,
        including the right to seek

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        damages from Employee for a breach of any provision of this Agreement,
        nor shall this paragraph be construed to limit the rights or other
        remedies available under law.

7.      AT-WILL EMPLOYMENT.

        This Agreement shall not alter Employee's status as an at-will employee,
        or the right of the Company or Employee to terminate the employment
        relationship with or without cause, prior notice or other formality.

8.      OTHER AGREEMENTS: EXISTING RELATIONSHIPS.

(a)     Before signing this Agreement, Employee may have executed other
        agreements relating to Employee's employment relationship with the
        Company. In the event of any direct conflict between any term of this
        Agreement and any term of any other agreement executed prior to the date
        of this Agreement, the terms of this Agreement shall control. However,
        in the event that Employee has, prior to the date of this Agreement,
        signed any other contract concerning Employee's employment relationship
        with the Company, any provision of any such agreement that is not in
        direct conflict with a provision of this Agreement shall not be
        affected, modified or superseded by this Agreement, but rather shall
        remain fully enforceable according to its terms.

        The Company acknowledges that Employee has agreed to and is bound by
        various contractual agreements obligating concerning the confidentiality
        and ownership of information and intellectual property with
        organizations, listed in Schedule A. No provisions of paragraphs 1a, 1b,
        1c, 1d, 3a, 3b, 3c, 3d, 3e, 3f, 4a, 4b, and 4c in this Agreement shall
        be construed to apply to the business activities, confidential
        information, or Intellectual property of organizations listed in
        Schedule A.

9.      MISCELLANEOUS.

(a)     HEIRS AND ASSIGNS. This Agreement shall be binding upon Employee's
        heirs, executors, administrators or other legal representatives, shall
        inure to the benefit of the Company, its successors or assigns, and
        shall be freely assignable by the Company, but not by Employee; This
        Agreement shall be binding upon the Company's successors and assigns;

(b)     GOVERNING LAW. This Agreement and all other disputes or issues arising
        from or relating in any way to the Company's relationship with Employee,
        shall be governed by the laws of the State of Maryland, irrespective of
        the choice of law rules of any jurisdiction;

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(c)     SEVERABILITY. if any court of competent jurisdiction declares any
        provision of this Agreement invalid or unenforceable, the remainder of
        the Agreement shall remain fully enforceable. To the extent that any
        court concludes that any provision of this Agreement is void or
        voidable, the court shall reform such provision(s) to render the
        provision(s) enforceable, but only to the extent absolutely necessary to
        render the provision(s) enforceable and only in view of the parties'
        express desire that the Company be protected to the greatest extent
        possible under applicable law from improper competition and/or the
        misuse or disclosure of trade secrets, Confidential Documents and/or
        Confidential Information.

(d)     DISPUTES. Any action arising from or relating any way to this Agreement,
        or otherwise arising from or relating to Employee's employment with the
        Company, Shall be resolved by good faith negotiation by the parties
        hereto. Should the parties fail/ to resolve their differences within 30
        days of the first written notice of either parties claim, then the
        matters in dispute shall be submitted to the American Arbitration
        Association (AAA) for arbitration in accordance with the rules of the
        AAA.

EXECUTED this     18th      day of      October      2000.
             --------------        -----------------
Sign:    /s/ Steve Lincoln
      ----------------------------------------------

Print name.  Steve Lincoln

Witness:    /s/ James E. Bernstein
         -------------------------------------------
Print Name:    James E. Bernstein
            ----------------------------------------

                                   SCHEDULE A

The following organizations are specifically excluded from the provisions of the
Agreement as provided in paragraph 8(b). This list may me modified at any time
by mutual agreement between Employee and the Company.

A)      Any advisory body, publisher's editorial staff, or agency engaged in the
        review or discussion of grant applications, requests for proposals,
        submitted research papers, submitted abstracts, or non-public conference
        agendas. This includes but is not limited to the National Institutes of
        Health, the Cambridge Healthcare Institute, and various Scientific
        Journals.

B)      Net2Labs Inc. of California

C)      The National Cancer Institute

                                       11
<PAGE>

D)      United Devices, Inc. of Texas

E)      The Institute for the Future of New York

                                       12<PAGE>

                                                                  EXECUTION COPY
                                                                   Exhibit 10.16

                             PARTICIPATION AGREEMENT

                          dated as of November 7, 2001

                                      among

                          HUMAN GENOME SCIENCES, INC.,
                        as Lessee and Construction Agent,

                                  TRAVILLE LLC,
                                as Ground Lessor,

                          GENOME STATUTORY TRUST 2001A,
                          as Ground Lessee and Lessor,

                        WELLS FARGO BANK NORTHWEST, N.A.,
                    not in its individual capacity except as
              specifically set forth herein, but solely as Trustee,

                       BANCBOSTON LEASING INVESTMENTS INC.
                                       and
                           FIRST UNION NATIONAL BANK,
                                  as Investors,

                        EAGLEFUNDING CAPITAL CORPORATION,
                                  as a Lender,

                             FLEET SECURITIES, INC.,
              as Administrator of EagleFunding Capital Corporation,

                               FLEET NATIONAL BANK
                                       and
                           FIRST UNION NATIONAL BANK,
                             as Liquidity Providers,

                              FLEET NATIONAL BANK,
                    as Fleet National Bank Collateral Agent,

                           FIRST UNION NATIONAL BANK,
                         as First Union Collateral Agent

                                       and

                              FLEET NATIONAL BANK,
                   as Administrative Agent and Liquidity Agent

<PAGE>

                                                         PARTICIPATION AGREEMENT

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               PAGE
<S>                   <C>                                                                                      <C>
ARTICLE I             DEFINITIONS; INTERPRETATION................................................................3

ARTICLE II            CLOSING; FUNDING OF ADVANCES...............................................................3

         SECTION 2.1.               Documentation Date and Initial Advance Date..................................3

         SECTION 2.2.               Advances.....................................................................3

                  SECTION 2.2.1.            Lessor Commitment....................................................4

                  SECTION 2.2.2.            Investors' Commitments...............................................4

                  SECTION 2.2.3.            Conduit's Fundings...................................................5

                  SECTION 2.2.4.            Liquidity Providers' Commitments to Make Facility Loans..............5

                  SECTION 2.2.5.            Procedures for Advances..............................................5

                  SECTION 2.2.6.            Use of Advances......................................................6

                  SECTION 2.2.7.            Investor Amounts and Yield...........................................7

                  SECTION 2.2.8.            Loans and Interest...................................................7

                  SECTION 2.2.9.            Construction Period Accrued Interest, Construction Period
                                            Accrued Yield and Construction Period Fees...........................7

                  SECTION 2.2.10.           Final Completion Advance.............................................8

         SECTION 2.3.               Computations and Notice of Rates.............................................8

         SECTION 2.4.               Overdue Payments.............................................................9

         SECTION 2.5.               Confirmation of Participants and the Other Parties..........................10

ARTICLE III           INTENTIONS OF THE PARTIES.................................................................10

         SECTION 3.1.               Nature of Transaction.......................................................10

         SECTION 3.2.               Amounts Due Under Lease.....................................................10

ARTICLE IV            CONDITIONS PRECEDENT......................................................................11

         SECTION 4.1.               Conditions to Documentation Date............................................11

         SECTION 4.2.               Conditions to Initial Advance Date..........................................16

         SECTION 4.3.               Conditions Precedent to the Manufacturing Facility Site Purchase Date
                                    and the Manufacturing Facility Site Purchase Advance........................16

         SECTION 4.4.               Conditions Precedent to each Advance........................................19

         SECTION 4.5.               Lease Commencement Upon Substantial Completion..............................20
</TABLE>

                                      -i-
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                TABLE OF CONTENTS
                                   (continued)

<TABLE>
<CAPTION>
                                                                                                               PAGE
<S>                   <C>                                                                                      <C>
ARTICLE V             REPRESENTATIONS AND WARRANTIES............................................................20

         SECTION 5.1.               Representations and Warranties of Lessee....................................20

         SECTION 5.2.               Representations and Warranties of Ground Lessor.............................26

         SECTION 5.3.               Representations and Warranties of Trustee, the Trust and the Trust
                                    Company.....................................................................27

         SECTION 5.4.               Representations of the Investors............................................29

         SECTION 5.5.               Representations of Liquidity Providers......................................29

         SECTION 5.6.               Representations of Agents...................................................30

ARTICLE VI            COVENANTS AND AGREEMENTS..................................................................30

         SECTION 6.1.               Covenants of Lessee and Construction Agent..................................30

         SECTION 6.2.               Covenants of the Trust, Trustee and Trust Company...........................37

         SECTION 6.3.               Covenants of the Investors..................................................39

         SECTION 6.4.               No Proceedings..............................................................39

         SECTION 6.5.               Quiet Enjoyment.............................................................39

         SECTION 6.6.               Discharge of Lessor Liens...................................................40

         SECTION 6.7.               Confidentiality.............................................................40

         SECTION 6.8.               Performance of Operative Documents; Waiver of Set-off and Other Rights......41

         SECTION 6.9.               Easements...................................................................41

         SECTION 6.10.              Certain Notices.............................................................42

         SECTION 6.11.              Refinancing.................................................................42

         SECTION 6.12.              Lessor Hedging Agreements...................................................43

ARTICLE VII           PAYMENT OF CERTAIN EXPENSES...............................................................44

         SECTION 7.1.               Payment of Transaction Costs and Other Costs................................44

         SECTION 7.2.               Brokers' Fees...............................................................44

         SECTION 7.3.               Limitations During Construction Period......................................44

ARTICLE VIII          TRANSFERS OF PARTICIPANTS' INTERESTS......................................................44

                  SECTION 8.1.1.            Transfers by Investors..............................................44

                  SECTION 8.1.2.            Transfers by Conduit................................................45

         SECTION 8.2.               Transfers by Liquidity Providers............................................46
</TABLE>

                                      -ii-
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                                                         PARTICIPATION AGREEMENT

                                TABLE OF CONTENTS
                                   (continued)

<TABLE>
<CAPTION>
                                                                                                               PAGE
<S>                   <C>                                                                                      <C>
         SECTION 8.3.               Replacement of Conduit, an Investor or a Liquidity Provider.................46

         SECTION 8.4.               Transfers by HGSI...........................................................46

         SECTION 8.5.               Renewal of Lease Term Expiration Date and Maturity Dates....................46

ARTICLE IX            INDEMNIFICATION...........................................................................48

         SECTION 9.1.               General Indemnification.....................................................48

                  SECTION 9.1.1.            General Indemnification.............................................48

                  SECTION 9.1.2.            Exceptions to Indemnifications......................................50

                  SECTION 9.1.3.            Construction Period Indemnification.................................51

         SECTION 9.2.               General Tax Indemnity.......................................................52

         SECTION 9.3.               Withholding Tax.............................................................57

         SECTION 9.4.               Calculation of General Tax Indemnity Payments...............................58

         SECTION 9.5.               Environmental Indemnity.....................................................59

         SECTION 9.6.               Proceedings in Respect of Claims............................................60

         SECTION 9.7.               Additional Costs; Capital Adequacy..........................................62

         SECTION 9.8.               Illegality..................................................................62

         SECTION 9.9.               Compensation................................................................63

         SECTION 9.10.              Obligations of Lessee to Pay Certain Amounts................................63

         SECTION 9.11.              Indemnity Payments in Addition to Lease Obligations.........................64

         SECTION 9.12.              Right to Convert............................................................64

         SECTION 9.13.              Mitigation..................................................................64

         SECTION 9.14.              Liquid Collateral...........................................................64

ARTICLE X             DISTRIBUTIONS OF PAYMENTS AND GROSS PROCEEDS..............................................64

         SECTION 10.1.              Agreement of Agents and Participants........................................64

         SECTION 10.2.              Base Rent...................................................................65

         SECTION 10.3.              Purchase Payments by Lessee.................................................65

         SECTION 10.4.              Recourse Amounts; Construction Period Maximum Guaranty Amount and
                                    Residual Value Guaranty Amount..............................................67

         SECTION 10.5.              Gross Sale Proceeds.........................................................70
</TABLE>

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                                                         PARTICIPATION AGREEMENT

                                TABLE OF CONTENTS
                                   (continued)

<TABLE>
<CAPTION>
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<S>                   <C>                                                                                      <C>
         SECTION 10.6.              Supplemental Rent...........................................................74

         SECTION 10.7.              Excluded Amounts............................................................74

         SECTION 10.8.              Distribution of Payments After Construction Agency Event of Default
                                    or Lease Event of Default...................................................74

         SECTION 10.9.              Other Payments..............................................................80

         SECTION 10.10.             Order of Application........................................................81

         SECTION 10.11.             Remaining Funds.............................................................81

         SECTION 10.12.             Time of Payment.............................................................81

ARTICLE XI            LESSEE DIRECTIONS; RECOURSE DURING CONSTRUCTION PERIOD....................................82

         SECTION 11.1.              Lessee Directions...........................................................82

         SECTION 11.2.              Recourse on Liability During Construction Period............................82

         SECTION 11.3.              Notice to Administrative Agent..............................................82

ARTICLE XII           MISCELLANEOUS.............................................................................83

         SECTION 12.1.              Survival of Agreements......................................................83

         SECTION 12.2.              Brokers.....................................................................83

         SECTION 12.3.              Notices.....................................................................84

         SECTION 12.4.              Counterparts................................................................84

         SECTION 12.5.              Amendments, Waivers and Instructions........................................84

         SECTION 12.6.              Headings, etc...............................................................86

         SECTION 12.7.              Parties in Property.........................................................86

         SECTION 12.8.              Applicable Law..............................................................86

         SECTION 12.9.              Severability................................................................86

         SECTION 12.10.             Limitation of Liability.....................................................86

         SECTION 12.11.             Further Assurances..........................................................87

         SECTION 12.12.             Reproduction of Documents...................................................88

         SECTION 12.13.             Submission to Jurisdiction..................................................88

         SECTION 12.14.             Jury Trial..................................................................89

         SECTION 12.15.             Appointment of Administrative Agent.........................................89

         SECTION 12.16.             Resignation by Administrative Agent.........................................91
</TABLE>

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                                TABLE OF CONTENTS
                                   (continued)

<TABLE>
<CAPTION>
                                                                                                               PAGE
<S>                                 <C>                                                                        <C>
         SECTION 12.17.             Appointment of the Fleet National Bank Collateral Agent.....................92

         SECTION 12.18.             Resignation by the Fleet National Bank Collateral Agent.....................94

         SECTION 12.19.             Appointment of the First Union Collateral Agent.............................95

         SECTION 12.20.             Resignation by the First Union Collateral Agent.............................97

         SECTION 12.21.             Binding Effect..............................................................98

         SECTION 12.22.             Non-Petition................................................................98

         SECTION 12.23.             Limitations on Recourse to Conduit..........................................98

         SECTION 12.24.             Limitations on Recourse to the Trust Company................................98

         SECTION 12.25.             Consent to Certain Actions..................................................99

         SECTION 12.26.             Notice to Administrative Agent..............................................99

         SECTION 12.27.             Estoppel Certificates.......................................................99

         SECTION 12.28.             Expenses During the Construction Period.....................................99

         SECTION 12.29.             Release and Exchange of Liquid Collateral..................................100

         Exhibit A                  Form of Advance Request
         Exhibit B                  Form of Monthly Certification
         Exhibit C                  Form of Assignment and Acceptance
         Exhibit D                  Form of Lessee Rent Notice
         Exhibit E                  Form of Compliance Certificate

         Schedule I                 Material Construction Documents
         Schedule II                Addresses for Payment and Other Communications
         Schedule III               Filings and Recordings
         Schedule IV                Appraisal Information
         Schedule V                 Account and Wiring Information
         Schedule VI                Non-Capitalizable Transaction Costs
         Schedule VII               Equipment List
         Schedule VIII              Adjacent Site Description
         Schedule IX                Synthetic Lease Obligations

         Schedule 5.1(a)(v)         Legal Proceedings

         Appendix A                 Definitions and Interpretation
</TABLE>

                                      -v-
<PAGE>

                                                  PARTICIPATION AGREEMENT (HGSI)

        THIS PARTICIPATION AGREEMENT dated as of November 7, 2001 (as amended,
supplemented or otherwise modified from time to time, this "Participation
Agreement"), is entered into by and among HUMAN GENOME SCIENCES, INC., a
Delaware corporation ("HGSI"), as Lessee and Construction Agent; TRAVILLE LLC, a
Maryland limited liability company whose sole member is HGSI, as Ground Lessor;
GENOME STATUTORY TRUST 2001A, a Connecticut statutory business trust (the
"Trust"), as Ground Lessee and Lessor; WELLS FARGO BANK NORTHWEST, N.A., not in
its individual capacity except as specifically set forth herein, but solely as
Trustee; BANCBOSTON LEASING INVESTMENTS INC., a Delaware corporation ("Fleet
Investor") and FIRST UNION NATIONAL BANK, a national banking association,
("First Union Investor"), as Investors; EAGLEFUNDING CAPITAL CORPORATION, a
Delaware corporation ("Eagle"), as a Lender; FLEET SECURITIES, INC., a Delaware
corporation, as Administrator of Eagle; FLEET NATIONAL BANK, a national banking
association ("Fleet Liquidity Provider") and FIRST UNION NATIONAL BANK ("First
Union Liquidity Provider"), as Liquidity Providers; FLEET NATIONAL BANK, as
Fleet National Bank Collateral Agent; FIRST UNION NATIONAL BANK, as First Union
Collateral Agent as provided herein; and FLEET NATIONAL BANK, as Administrative
Agent and Liquidity Agent.

                              W I T N E S S E T H:

        WHEREAS, Ground Lessor is the owner of the fee simple interest in the
Traville Site;

        WHEREAS, the Investors have entered into the Trust Agreement with the
Trust Company, pursuant to which the Trust Company will serve as Trustee of the
Trust;

        WHEREAS, pursuant to the terms of the Ground Lease, Ground Lessor has
leased to the Trust and the Trust, as Ground Lessee, has leased from Ground
Lessor, the Traville Site;

        WHEREAS, pursuant to the terms of the Lease, Lessor has subleased to
Lessee, and Lessee has subleased from Lessor, the Traville Site;

        WHEREAS, pursuant to the terms of the Lease, Lessor has leased to
Lessee, and Lessee has leased from Lessor, the Manufacturing Facility Site;

        WHEREAS, Lessor wishes to finance the development of certain
Improvements on the Land to be used by Lessee and certain Soft Costs in
connection therewith;

        WHEREAS, using the proceeds of Investor Contributions from the
Investors, Conduit Loans from Conduit and Facility Loans from the Liquidity
Providers, Lessor is willing to make Advances to Construction Agent;

        WHEREAS, using Advances from Lessor, Construction Agent, will construct
certain Improvements that will be the property of Lessor and will become part of
the Properties subject to the terms of the Lease;

        WHEREAS, the Investors are willing to provide their respective Investor
Contributions as the equity portion of the funding of Property Costs, each
ratably in accordance with its

<PAGE>

                                                         PARTICIPATION AGREEMENT

respective Percentage Share, but not to exceed in the aggregate their respective
Commitment Amount;

        WHEREAS, Conduit is willing, in its sole discretion, to provide Conduit
Loans consisting of proceeds from either (a) the issuance of Commercial Paper
Notes or (b) the making of Borrowings from the Liquidity Providers pursuant to
the Liquidity Agreement, in each case to finance Property Costs not to exceed in
the aggregate its Commitment Amount;

        WHEREAS, if, for any reason, Conduit elects not to issue Commercial
Paper Notes or request Borrowings and lend such proceeds, the Liquidity
Providers are willing to make Facility Loans to finance a Property Costs not to
exceed in each case a Liquidity Provider's respective Commitment Amount;

        WHEREAS, to secure such financing,

                (i)     Lessor, pursuant to the Lease, the Lessee Deed of Trust,
        the Security Agreement and the Liquid Collateral Agreements will have
        the benefit of a lien from Lessee on all of Lessee's right, title and
        interest in and to both Properties and the Liquid Collateral,

                (ii)    Administrative Agent (for the benefit of the Investors,
        the Agents, the Liquidity Providers and Conduit) pursuant to the Lessor
        Deed of Trust and the other Security Documents will have the benefit of
        a Lien from Lessor on all of Lessor's right, title and interest in and
        to the Properties and on all of Lessor's rights against Lessee under the
        Lease and the Lessee Deed of Trust, against Ground Lessor under the
        Ground Lease, against Construction Agent under the Construction Agency
        Agreement, which liens are more fully described in the Security
        Agreement, the Lessor Deed of Trust and the Lessee Deed of Trust,

                (iii)   the Fleet National Bank Collateral Agent (for the
        benefit of Eagle, the Liquidity Providers and the Investors) will have
        the benefit of a Lien from Lessor on all of Lessor's right, title and
        interest in and to the Fleet National Bank Liquid Collateral which lien
        is more fully described in the Fleet National Bank Liquid Collateral
        Agreement, and

                (iv)    the First Union Collateral Agent (for the benefit of the
        Conduit, the Liquidity Providers and the Investors) will have the
        benefit of a Lien from Lessor on all of Lessor's right, title and
        interest in and to the First Union Liquid Collateral which lien is more
        fully described in the First Union Liquid Collateral Agreement;

        WHEREAS, Eagle is entering into the Loan Agreement and the Liquidity
Agreement with the Liquidity Providers, pursuant to which the Liquidity
Providers may make Facility Loans from time to time.

        NOW, THEREFORE, in consideration of the mutual agreements contained in
this Participation Agreement and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, and intending to be
legally bound hereby, the parties hereto agree as follows:

                                       2
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                   ARTICLE I

                           DEFINITIONS; INTERPRETATION

        Capitalized terms used and not defined herein shall have the meanings
assigned thereto in Appendix A hereto for all purposes hereof; and the rules of
interpretation set forth in Appendix A hereto shall apply to this Participation
Agreement.

                                   ARTICLE II

                          CLOSING; FUNDING OF ADVANCES

        SECTION 2.1. Documentation Date and Initial Advance Date

        (a)     Documentation Date. The documentation date (the "Documentation
Date") shall occur on the earliest date on which all of the conditions precedent
set forth in Section 4.1 have been satisfied or waived by the applicable
parties.

        (b)     Initial Advance Date. The initial Advance Date (the "Initial
Advance Date") shall occur on the earliest date on or before November 30, 2001
on which all the conditions precedent thereto set forth in Section 4.2 have been
satisfied or waived by the applicable parties as set forth therein; provided,
however, that if the Initial Advance Date does not occur on or prior to December
28, 2001, then this Participation Agreement shall automatically terminate
(except as provided in Section 12.1), Lessee shall pay in full all Transaction
Costs not theretofore paid by it, and each other Operative Document then
executed shall terminate.

        (c)     Proposed Initial Advance Date. The proposed Initial Advance Date
is November 13, 2001.

        (d)     Manufacturing Facility Site Purchase Date. The date on which
Lessor shall make the Manufacturing Facility Site Purchase Advance for the
purpose of purchasing the Manufacturing Facility Site (the "Manufacturing
Facility Site Purchase Date") is expected to occur on the Documentation Date;
provided, however, that if the Manufacturing Facility Site Purchase Date does
not occur on or prior to December 21, 2001, then all agreements, covenants and
obligations contained herein or in any other Operative Document with respect to
the Manufacturing Facility Site shall automatically terminate (except as
provided in Section 12.1 or with respect to any covenants, agreements or
obligations of the Construction Agent in respect of funded Soft Costs relating
to the Manufacturing Facility).

        (e)     Closing. All documents and instruments required to be delivered
on the Documentation Date and the Initial Advance Date pursuant to this
Participation Agreement shall be delivered at such location in New York City as
the parties may mutually agree.

        SECTION 2.2. Advances

        Subject to the terms and conditions hereof including Sections 2.2.1,
2.2.2, 2.2.3, 2.2.4 and 2.2.5 as applicable, and of the other Operative
Documents, all Advances by the Participants shall be funded in accordance with
this Section 2.2.

                                       3
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (a)     Expenditures. Each Participant shall make available (subject to
the other limitations contained in any Operative Document on such Participant's
obligation to make available any Investor Contribution or Loan, as the case may
be) on a pro rata basis its respective share of each Advance payable on the
related Advance Date (including Construction Period Accrued Interest to the
extent allocable to such items). Such portion of the Advance shall be
contributed or advanced, as applicable (i) by each Investor in an amount equal
to the product of such Advance multiplied by the product of such Investor's
Percentage Share times the Equity Percentage, and (ii) by Conduit in an amount
equal to the product of such Advance multiplied by the Loan Percentage (or if
Conduit elects not to fund, by the Liquidity Providers in an amount equal to the
product of such Advance multiplied by the Loan Percentage).

        (b)     Lack of Available Commitments. Notwithstanding any other
provision hereof, (i) the failure of any of the conditions precedent set forth
in Section 4.4 or (ii) the lack of any Available Commitments shall not relieve
Lessee from its obligation to pay any accrued interest or Yield as Supplemental
Rent under Section 3.2 of the Lease.

        SECTION 2.2.1. Lessor Commitment. Subject to Section 2.2.5 and Article
IV, Lessor shall take the following actions at the written request of Lessee
from time to time during the Commitment Period:

        (a)     the making of Advances (out of (i) funds provided by the
Investors to Lessor and (ii) funds provided by Conduit and the Liquidity
Providers to Lessor pursuant to Sections 2.2.2 and 2.2.3) for the purpose of
financing the purchase price of the Manufacturing Facility Site and Property
Costs, only as approved by Construction Agent and previously incurred (and for
which Advances have not previously been made); and

        (b)     the subleasing of the Traville Site and the leasing of the
Manufacturing Facility Site and the leasing of the Improvements by Lessor to
Lessee under the Lease.

Notwithstanding any other provision of this Section 2.2.1 through 2.2.5, (i)
neither Lessor nor any Participant shall be obligated to fund (A) any Property
Costs whenever a Construction Agency Event of Default has occurred and is
continuing or there exists a Bankruptcy Default, (B) any Property Costs (other
than Soft Costs up to an aggregate of $100,000.) with respect to any
Manufacturing Facility Improvements prior to the Manufacturing Facility Site
Purchase Date and the acceptance of an Approved Manufacturing Construction
Budget, an Approved Manufacturing Construction Schedule and an Approved
Manufacturing Plans and Specifications, or (c) any Property Costs (other than
Soft Costs up to an aggregate of $100,000.) with respect to the Traville
Facility prior to the acceptance of an Approved Traville Construction Budget, an
Approved Traville Construction Schedule and an Approved Traville Plans and
Specifications, and (ii) Lessor shall not be obligated to make any Advance, and
no Investor and no Lender shall be required to make available any Investor
Contribution or any Loan, respectively, if (A) the Commitment Period has
terminated or (B) after giving effect thereto, the aggregate principal amounts
of all Loans and Investor Amounts would exceed the Aggregate Commitments.

        SECTION 2.2.2. Investors' Commitments. At the request of Lessee from
time to time during the Commitment Period with respect to any Advance Date, each
Investor shall, in the form of equity contributions to Lessor, make available to
Administrative Agent on behalf of

                                       4
<PAGE>

                                                         PARTICIPATION AGREEMENT

Lessor on such Advance Date in immediately available funds an amount (each, an
"Investor Contribution") equal to such Investor's Percentage Share of the Equity
Percentage of the amount of the Advance being funded on such Advance Date (which
shall include Advances in respect of Construction Period Accrued Interest and
Construction Period Accrued Yield being funded on such Advance Date), subject,
however, to Section 2.2. Investors shall fund Investor Contributions to Lessor
by means of the Investors funding Investor Contributions directly to
Administrative Agent. No Investor shall be obligated to make available any
Investor Contribution to the extent that, after giving effect to the proposed
Investor Contribution, the outstanding aggregate amount of all Investor
Contributions attributable to such Investor would exceed such Investor's
Commitment Amount.

        SECTION 2.2.3. Conduit's Fundings. At the request of Lessee from time to
time during the Commitment Period with respect to any Advance Date, Conduit may,
in its sole discretion, (a) elect to (i) issue, if necessary, Commercial Paper
Notes, and/or (ii) make Borrowings from the Liquidity Providers under the
Liquidity Agreement, and (b) with the proceeds thereof, make Conduit Loans on
such Advance Date to Lessor (which shall be contributed directly to
Administrative Agent on behalf of Lessor and the amount so funded shall be
deemed a contribution to Lessor), in the case of clauses (a) and (b) in an
amount equal to the Loan Percentage of the amount of the Advance being funded on
such Advance Date.

        SECTION 2.2.4. Liquidity Providers' Commitments to Make Facility Loans.
From time to time during the Commitment Period with respect to any Advance Date
on which Conduit elects not to or otherwise does not make a Conduit Loan, the
Liquidity Providers shall make Facility Loans by funding the same to
Administrative Agent for the account of Lessor (which shall be funded directly
to Administrative Agent on behalf of Lessor and the amount so funded shall be
deemed a Facility Loan) on such Advance Date in immediately available funds in
an amount equal to such Liquidity Provider's Pro Rata Portion of the Loan
Percentage of the amount of the Advance being funded on such Advance Date. No
Liquidity Provider shall be obligated to make any Facility Loan to the extent
that, after giving effect to the proposed Facility Loan, the outstanding
aggregate principal amount of all Loans held by such Liquidity Provider, plus
the outstanding principal amount of all fundings under the Liquidity Agreement,
would exceed such Liquidity Provider's Commitment Amount.

        SECTION 2.2.5. Procedures for Advances.

        (a)     Advance Requests. With respect to each funding of an Advance,
Lessee shall give Lessor, the Investors, the Administrator and the Agents prior
written notice not later than 12:00 noon (New York City time), three Business
Days prior to the proposed Advance Date, pursuant to an Advance Request
substantially in the form of Exhibit A (an "Advance Request"), specifying the
proposed Advance Date (except for the Initial Advance Date, which is set forth
in Section 2.1(c)) and the amount of Advance requested.

        (b)     Advance Dates; Minimum Amounts. Each Advance Date other than the
Initial Advance Date and the Manufacturing Facility Site Purchase Date (which
shall be a Business Day) shall be a Scheduled Payment Date, and there shall be
no more than one Advance during any calendar month unless the Participants
otherwise agree. Each Advance (excluding any Advance made solely to pay
Construction Period Fees, Construction Period Accrued Interest or

                                       5
<PAGE>

                                                         PARTICIPATION AGREEMENT

Construction Period Accrued Yield and the purchase price of the Manufacturing
Facility) shall be in a minimum amount equal to $5,000,000; provided, that so
long as an Advance is for the full amount of the Aggregate Available
Commitments, is the final Advance or is for Noneligible Accrued Amounts, such
Advance need not be in such amount. All remittances made by Investors and
Lenders for the funding of any Advance shall be made in immediately available
federal funds by wire transfer to Administrative Agent prior to 1:00 p.m. (New
York City time) on the Advance Date specified in the relevant Advance Request.
Promptly, but in no event later than 3:00 p.m. (New York City time) if all such
funds are received on or before 2:00 p.m. (New York City time), upon
Administrative Agent's receipt of all such funds from the Participants, subject
to the conditions herein, Administrative Agent shall wire such funds in the
amounts, and to Construction Agent (or its designee) or such other Persons, so
designated in the Advance Request.

        (c)     A Loans and B Loans. Each Conduit Loan and each Facility Loan
made hereunder shall consist of an A Loan in an amount equal to 87.5% of such
Conduit Loan or Facility Loan, and a B Loan in an amount equal to 12.5% of such
Conduit Loan or Facility Loan.

        SECTION 2.2.6. Use of Advances

        (a)     With respect to the Traville Facility, Advances shall only be
used to fund the following items to the extent they (i) are available under the
Approved Traville Construction Budget, (ii) are appropriately allocated to the
Traville Facility on Schedule 1 to the Advance Request applicable to such
Advance and (iii) were actually incurred prior to the applicable Advance Date:
(A) Eligible Accrued Project Costs, (B) Noneligible Accrued Amounts, (C)
Transaction Costs, (D) without duplication of the foregoing, fees and expenses
payable pursuant to Section 9.10 and (E) during the Construction Period, any
other costs that are to be expressly funded through Advances pursuant to any
provision of the Operative Documents and are not otherwise provided for in this
Section 2.2.6(a). Advances may be applied to any of the foregoing, regardless of
whether such costs, fees or expenses were incurred prior to, as of or after the
Documentation Date.

        (b)     With respect to the Manufacturing Facility, (i) prior to the
Manufacturing Facility Site Purchase Date, Advances shall only be used to fund
Soft Costs up to an aggregate of $100,000., and (ii) upon the occurrence of the
Manufacturing Facility Site Purchase Date, Advances shall only be used to fund
the following items to the extent they (A) are available under the Approved
Manufacturing Construction Budget, (B) are appropriately allocated to the
Manufacturing Facility on Schedule 1 to the Advance Request applicable to such
Advance and (C) with the exception of the Land Costs which shall be incurred on
the date of the Manufacturing Facility Site Purchase Date, were actually
incurred prior to the applicable Advance Date: (1) Eligible Accrued Project
Costs, (2) Noneligible Accrued Amounts, (3) Transaction Costs, (4) without
duplication of the foregoing, fees and expenses payable pursuant to Section 9.10
and (5) during the Construction Period, any other costs that are to be expressly
funded through Advances pursuant to any provision of the Operative Documents and
are not otherwise provided for in this Section 2.2.6(b). Advances may be applied
to any of the foregoing, regardless of whether such costs, fees or expenses were
incurred prior to, as of or after the Documentation Date.

                                       6
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (c)     On any date of determination, the aggregate General Cost Balance
shall be allocated between the Traville Lease Balance and the Manufacturing
Lease Balance in the same proportion as the aggregate of all amounts allocated
to the Traville Lease Balance and the Manufacturing Lease Balance, respectively,
in each case on all Advance Requests prior to such date of determination relate
to the total aggregate amount allocated to both Properties.

        SECTION 2.2.7. Investor Amounts and Yield.

        (a)     Investor Amounts outstanding from time to time shall accrue
Yield at the Yield Rate, calculated in accordance with Section 2.3. If all or
any portion of the Investor Amounts, any Yield payable thereon or any other
amount payable hereunder shall not be paid when due (whether at stated maturity,
acceleration thereof or otherwise), such overdue amount shall bear interest at a
rate per annum which is equal to the Overdue Rate.

        (b)     Subject to the provisions of the Operative Documents, Investor
Amounts together with all accrued and unpaid Yield on the Investor Contributions
shall be repaid on the Investor Maturity Date.

        (c)     Pursuant to the Assignment of Lease given by Lessor, Lessor
shall direct (and Lessor hereby directs) Lessee to pay to Administrative Agent
for the account of the Investors the Investor Base Rent and all other amounts
due with respect to the Investor Amounts payable by Lessee under the Lease
(other than Excluded Amounts) from time to time, and Administrative Agent shall
distribute such amounts to the Investors in accordance with Article X.

        (d)     Construction Period Accrued Yield on each Investor's outstanding
Investor Amounts shall be paid in accordance with Section 2.2.9.

        SECTION 2.2.8. Loans and Interest.

        (a)     Each Conduit Loan and each Facility Loan shall accrue interest
computed and payable in accordance with the terms of the Loan Agreement.

        (b)     The principal of each A Loan, together with all accrued and
unpaid interest thereon, shall be repaid in full on the A Loan Maturity Date.
The principal of each B Loan, together with all accrued and unpaid interest
thereon, shall be repaid in full on the B Loan Maturity Date.

        (c)     Pursuant to the Liquid Collateral Agreements, the Security
Agreement and the Assignment of Lease, Lessor shall direct (and Lessor hereby
directs) Lessee to pay to Administrative Agent for the account of the
Participants, Rent payable under the Lease (other than Excluded Amounts) from
time to time, and Administrative Agent shall distribute such amounts to the
Participants in accordance with Article X.

        (d)     Construction Period Accrued Interest shall be paid in accordance
with Section 2.2.9.

        SECTION 2.2.9. Construction Period Accrued Interest, Construction Period
Accrued Yield and Construction Period Fees.

                                       7
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (a)     Advances to be Requested. In accordance with and subject to
Section 2.2.5, during the Construction Period Lessee shall request an Advance in
an amount equal to Construction Period Unused Fees, Construction Period Accrued
Interest and Construction Period Accrued Yield and Construction Period Fees
accrued on or with respect to the Loans and Investor Amounts, in the amounts
calculated, determined and delivered to Lessee pursuant to Section 2.3.

        (b)     Certain Payments. Construction Period Accrued Interest in
respect of Loans and Construction Period Accrued Yield due any Investor shall be
paid in cash on each Scheduled Payment Date occurring prior to the end of the
Construction Period from proceeds of the Loans and Investor Contributions.
Administrative Agent shall pay in cash to the Participants, to the extent of the
Advances for such items, on each Scheduled Payment Date all Construction Period
Accrued Interest and Construction Period Accrued Yield due on each such
Scheduled Payment Date from the proceeds of such Advance.

        SECTION 2.2.10. Final Completion Advance. On the last Advance Date
occurring on or before the day on which Substantial Completion occurs with
respect to a Property, Lessee may request, and the Participants shall fund, an
Advance pursuant to Section 2.2.5 in an amount equal to the lesser of (x) the
remaining Aggregate Available Commitments and (y) the amount allocated to
punch-list items and other final completion work as determined by Construction
Agent in accordance with the Construction Budget for such Property; provided,
however, that no such Advance shall be requested or made if a Bankruptcy
Default, a Construction Agency Event of Default or a Lease Event of Default has
occurred and is continuing.

        SECTION 2.3. Computations and Notice of Rates.

        (a)     Determination of the Rates. All computations of Construction
Period Unused Fees, Yield and other accrued amounts in respect of the Investor
Contributions shall be made by the related Collateral Agent on the basis of the
actual number of days (including the first day but excluding the last day)
occurring during the period for which such amount is payable over a year
comprised of 360 days (or, in the case of amounts accruing interest or Yield by
reference to the ABR, 365 days or, if appropriate, 366 days). Computations of
interest and other amounts payable in respect of Conduit Loans and Facility
Loans shall be made by the Administrator in accordance with the Loan Agreement.

        (b)     Notice of Interest and Yield. No later than the seventh (7th)
day of each calendar month (or, if such day is not a Business Day, then the next
succeeding Business Day), (i) Administrative Agent shall deliver to Lessee and
each Investor notice of monthly rental in the form of Exhibit D (with
appropriate insertions) setting forth a calculation of the amount of Yield due
and payable on the Scheduled Payment Date for the Interest Period ending on the
next succeeding Scheduled Payment Date, and (ii) the Administrator shall deliver
to Administrative Agent and Lessee in the form of Exhibit D (with appropriate
insertions) a calculation of the amount of accrued interest due and payable on
all outstanding Conduit Loans and Facility Loans under the Loan Agreement on the
next Scheduled Payment Date and other accrued amounts payable to Eagle under the
Operative Documents; provided that in each case the failure of any such Agent to
provide such notice shall not relieve Lessee from any liability that it may have
under the Operative Documents to pay any such amount; provided further that any
such Agent's

                                       8
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                                                         PARTICIPATION AGREEMENT

failure to give such notice shall result in no liability to it. If HGSI has not
received notice from the Administrative Agent in respect of Yield or from the
Administrator in respect of accrued interest, HGSI shall immediately notify in
writing the Administrative Agent and/or the Administrator, as applicable, to
request such information. If either or both the Administrative Agent or the
Administrator fail to notify in writing HGSI of the amounts due for the next
succeeding Scheduled Payment Date, HGSI shall pay to Lessor, subject to the next
sentence, in the manner set forth in Section 3 of the Lease, in lieu of the
amount required under Section 3.1 of the Lease for the next succeeding Scheduled
Payment Date, (x) in the case no written notice of the amount of Yield has been
delivered, 110% of the amount of Yield due and payable for the Scheduled Payment
Date closest to the Scheduled Payment Date in question for which a written
notice had been delivered in accordance with Section 2.3(b), and (y) in the case
no written notice of the accrued interest has been delivered, 110% of the
accrued interest due and payable for the Scheduled Payment Date closest to the
Scheduled Payment Date in question for which a written notice had been delivered
in accordance with Section 2.3(b). If after payment of an amount pursuant to the
next preceding sentence, HGSI receives a notice of the amount due for the
Scheduled Payment Date in question, an adjustment shall be made such that, where
HGSI actually paid an amount greater than the component of Base Rent due and
payable for such date (assuming the notice had been timely delivered), such
difference shall be remitted by the party receiving the excess to HGSI, and
where HGSI actually paid an amount less than the component of Base Rent due and
payable (assuming the notice had been timely delivered) HGSI shall pay to Lessor
the shortfall no later than the fifth (5th) Business Day next succeeding
delivery of such written notice. For purposes of Section 18.1 of the Lease both
the preliminary payment by HGSI above and any payment it is required to make in
adjustment thereof shall be considered Base Rent.

        (c)     Conclusive Determinations. Each determination by the
Administrative Agent of any rate or fee, or any other amount due, pursuant to
Section 2.3(a) or (b) or 9.10 hereof shall be conclusive and binding on all
parties hereto, absent manifest error.

        (d)     Computations of Yield and Determination of Yield Rate. Each of
the Investors and Lessor hereby appoints Administrative Agent as its agent for
purposes of computing Yield in respect of the Investor Amounts and determining
the Yield Rate.

        SECTION 2.4. Overdue Payments. Lessor, the Lenders and the Investors
acknowledge that Lessee shall have no liability with respect to overdue payments
of Loans and Investor Amounts or any other amount due and owing by Lessee under
the Operative Documents so long as Lessee has timely paid Rent in accordance
with Article III of the Lease, or such amounts are otherwise accounted for
pursuant to Section 2.2.7 or 2.2.8; provided, however, that such Loans and
Investor Amounts shall be reinstated and remain outstanding and Lessee shall
remain liable for such Rent, if at any time any payment (in whole or in part) of
any Rent is invalidated, declared to be fraudulent or preferential, set aside,
rescinded or must otherwise be restored by Lessor, any Participant or
Administrative Agent, upon the insolvency, bankruptcy, reorganization (or
similar event) of Lessee, all as though such payment of Rent had not been made.
Subject to the foregoing provisions of this Section 2.4, Lessee acknowledges its
obligation to pay as Supplemental Rent any interest contemplated at the Overdue
Rate with respect to Investor Amounts and the Loans.

                                       9
<PAGE>

                                                         PARTICIPATION AGREEMENT

        SECTION 2.5. Confirmation of Participants and the Other Parties. Each
Participant and each other party to any of the Operative Documents agrees that
the release of its signature pages to Mayer, Brown & Platt upon its instruction
shall constitute notice, without further act, of its confirmation that all
conditions to the Documentation Date and the Initial Advance Date set forth in
Section 4.1 or 4.2, as applicable, were met to the satisfaction of such
Participant or other party.

                                  ARTICLE III

                            INTENTIONS OF THE PARTIES

        SECTION 3.1. Nature of Transaction. The parties hereto intend that (i)
for financial accounting purposes with respect to Lessee, (A) Lessor will be
treated as the sublessor of the Traville Site under the Lease and the owner and
the lessor of the Improvements and the Manufacturing Facility Site and Lessee
will be treated as the lessee of the Manufacturing Facility Site and the
sublessee of the Traville Site under the Lease and the lessee of the
Improvements, and (B) the Investors will be deemed to have an equity investment
in Lessor, and (ii) for all federal and all state and local income tax purposes
and bankruptcy and commercial law purposes, (A) the Lease will be treated as a
financing arrangement, (B) Lessor, the Investors and the Lenders will be deemed
lenders making loans to Lessee in an amount equal to the sum of the Investor
Amounts and the outstanding principal amount of the Loans, which loans are
secured by the Liquid Collateral to the extent of the Lessor's interest therein
and the Properties, (C) Lessee will be treated as the owner of the Properties
for tax purposes and will be entitled to all tax benefits ordinarily available
to an owner of property like the Properties for such tax purposes and (D) the
obligations of Lessee to pay the Base Rent and any part of the Lease Balance
shall be treated as payments of interest and principal, respectively, for
Federal and state income tax and bankruptcy and commercial law purposes.
Nevertheless, each party acknowledges and agrees that no other party has made
any representations or warranties to any other party concerning the tax,
accounting or legal characteristics of the Operative Documents and that each
party has obtained and relied upon such tax, accounting and legal advice
concerning the Operative Documents as it deems appropriate. Lessor shall have a
valid and binding security interest in and Lien on the Liquid Collateral and the
Properties, free and clear of all Liens other than Permitted Liens, as security
for the obligations of Lessee under the Operative Documents. Except as otherwise
provided by law or in connection with a settlement, compromise or adjudication
made under the provisions of Section 9.2(b), each of the parties to this
Participation Agreement agrees that it will not, nor will it permit any
Affiliate to at any time, directly or indirectly take any action or fail to take
any action with respect to the preparation or filing of any income tax or other
tax return, including an amended income tax or other tax return, to the extent
that such action or such failure to take action would be inconsistent with the
intention of the parties expressed in this Section 3.1.

        SECTION 3.2. Amounts Due Under Lease.

        Notwithstanding anything to the contrary contained in the Operative
Documents, it is the intention of HGSI, Lessee, Lessor, each Investor, Conduit
and the Liquidity Providers that the amount and timing of installments of Base
Rent due and payable from time to time from Lessee under the Lease shall be
equal to the aggregate payments due and payable after the Lease

                                       10
<PAGE>

                                                         PARTICIPATION AGREEMENT

Commencement Date on each Scheduled Payment Date with respect to interest on the
Loans and Yield on the Investor Amounts then due.

                                   ARTICLE IV

                              CONDITIONS PRECEDENT

        SECTION 4.1. Conditions to Documentation Date. The occurrence of the
Documentation Date and the obligation of each of Lessee, Lessor, each Investor,
Administrative Agent, each Collateral Agent, Conduit, the Administrator and each
Liquidity Provider to perform its respective obligations on the Documentation
Date (if any), shall be subject to the fulfillment to the reasonable
satisfaction of (including, with respect to writings, such writings being in
form and substance reasonably satisfactory to the addressee or beneficiary
thereof), or the waiver by, Lessee, Lessor, each Investor, Administrative Agent,
each Collateral Agent, Conduit, the Administrator and each Liquidity Provider,
as applicable, of the following conditions precedent set forth in this Section
4.1 on or before the Documentation Date:

        (a)     Insurance. Lessor and each Agent shall have received and
approved a report issued by the Independent Insurance Consultant with respect to
Lessee's compliance with its obligation to maintain insurance with respect to
the Traville Facility in accordance with Section 2.7(f) of the Construction
Agency Agreement, which report shall be satisfactory to Lessor and
Administrative Agent in all respects.

        (b)     Certain Documents. Lessor, Lessee and each of the Participants
(or respective counsel for each such party) shall have received a fully executed
counterpart of each of the following agreements to which the applicable entity
is a party:

                (i)     this Participation Agreement;

                (ii)    the Ground Lease and Memorandum of Ground Lease;

                (iii)   the Lease and Memorandum of Lease;

                (iv)    the Security Agreement;

                (v)     the Deeds of Trust;

                (vi)    the Assignment of Lease;

                (vii)   the Construction Agency Agreement;

                (viii)  the Connecticut Certificate of Trust;

                (ix)    the Trust Agreement;

                (x)     the Loan Agreement;

                (xi)    the Conduit Note;

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<PAGE>

                                                         PARTICIPATION AGREEMENT

                (xii)   the Facility Notes;

                (xiii)  the Liquidity Agreement;

                (xiv)   the Financing Statements;

                (xv)    the Liquid Collateral Agreements; and

                (xvi)   the Custody Agreements.

        Each of the aforementioned Operative Documents, to the extent the same
constitutes an agreement or undertaking, shall have been duly authorized,
executed and delivered by each of the parties thereto and shall be in full force
and effect.

        (c)     Filings and Recordation. All filings and recordings enumerated
and described in Part A, Part B and Part C of Schedule III, as well as all other
filings and recordings necessary or advisable, including precautionary financing
statements, in the opinion of Lessor, Administrative Agent, either Collateral
Agent or any Participant, to perfect the right, title and interest of Lessor,
Administrative Agent, the Collateral Agents, the Participants and the Lessor
Hedging Agreement Counterparties intended to be created by the Operative
Documents shall have been made, or shall have been arranged to be made promptly
thereafter, in the appropriate places or offices, including any recordings and
filings necessary to create, preserve and protect such Persons' valid and
binding security interests in and Liens on the Collateral, subject in each case
to Permitted Liens and the rights of Lessee under the Lease. All recording and
filing fees and Taxes with respect to any recordings or filings made pursuant to
this Section 4.1(c) or otherwise payable in respect of any Operative Document
shall have been paid in full by Lessee, and satisfactory evidence thereof shall
have been delivered to Lessor and the Agents, or arrangements for such payment
shall have been made to the satisfaction of Lessor and the Agents or evidence
satisfactory to Lessor and the Agents of exemption from such filing fees or
taxes shall have been delivered to Lessor and the Agents.

        (d)     Consents and Approvals. All approvals and consents required to
be taken, given or obtained, as the case may be, by or from any Authority or
other Person, or by or from any trustee or holder of any indebtedness or
obligation of HGSI, that are necessary or, in the reasonable opinion of the
Participants, advisable in connection with the execution, delivery and
performance of the Operative Documents by all parties hereto, shall have been
taken, given or obtained as the case may be, shall be in full force and effect
and the time for appeal with respect thereto shall have expired (or, if an
appeal shall have been taken, the same shall have been dismissed) and shall not
be subject to any pending proceedings or appeals (administrative, judicial or
otherwise).

        (e)     Opinions of Counsel. Lessor, the Investors, Conduit, the Agents
and each Liquidity Provider shall have received the following legal opinions
(and by such Person's execution of the Operative Documents to which each is
respectively a party, each expressly instructs its respective counsel to execute
and deliver the opinions referred to in this Section 4.1(e)):

                                       12
<PAGE>

                                                         PARTICIPATION AGREEMENT

                (i)     the opinion of Paley Rothman Goldstein Rosenberg &
        Cooper, Chartered, special counsel to HGSI, Ground Lessor and Lessee;

                (ii)    the opinion of Day, Berry & Howard, special Connecticut
        counsel to Lessor and special counsel to the Trust Company, the Trust
        and Trustee; and

                (iii)   the opinion of Lerch, Early & Brewer, CHTD., special
        counsel to Lessee at Closing and another opinion at the Completion Date,

in each case covering such matters as the addressees thereof shall request.

        (f)     Corporate Status and Proceedings of HGSI and Ground Lessor.
Lessor, the Investors, Conduit, each Agent and each Liquidity Provider shall
have received copies of:

                (i)     certificates of existence and good standing, or
        authority to transact business as a foreign corporation, (y) with
        respect to HGSI, from the Secretary of State of the States of Delaware
        and Maryland, and (z) with respect to Ground Lessor, from the Secretary
        of State of Maryland, in each case dated as of a recent date;

                (ii)    a certificate of the Secretary or an Assistant Secretary
        of HGSI, in each case attaching and certifying as to (w) the resolutions
        of its Board of Directors or similar body and/or other authorized
        persons duly authorizing the execution, delivery and performance by it
        of each Operative Document to which it is or will be a party, (x) its
        certificate of formation or articles of incorporation, as the case may
        be, certified as of a recent date by the Secretary of State of the State
        of Delaware, (y) its by-laws and (z) the incumbency and signature of
        persons authorized to execute and deliver on its behalf the Operative
        Documents to which it is a party;

                (iii)   a certificate of the Secretary or an Assistant Secretary
        of HGSI, in each case attaching and certifying as to (w) the resolutions
        of HGSI, as the sole member of Ground Lessor, and/or other authorized
        persons duly authorizing the execution, delivery and performance by
        Ground Lessor of each Operative Document to which it is or will be a
        party, (x) the certificate of formation or articles of incorporation, as
        the case may be, of Ground Lessor certified as of a recent date by the
        Secretary of State of the State of Maryland, (y) the by-laws of Ground
        Lessor and (z) the incumbency and signature of persons authorized to
        execute and deliver on behalf of Ground Lessor the Operative Documents
        to which it is a party;

                (iv)    a certificate of an authorized officer of HGSI, in each
        case confirming the accuracy of the representations made by Ground
        Lessor in the Operative Documents.

        (g)     Corporate Status and Proceedings of Trustee. HGSI, Lessee,
Conduit, each Agent and each Liquidity Provider shall have received a
certificate of the Secretary or an Assistant Secretary of Trustee attaching and
certifying as to (i) the resolutions of the Board of Directors duly authorizing
the execution, delivery and performance by Trustee of each Operative Document to
which it is or will be a party and by the Trust Company of the Trust Agreement,
(ii) its articles of association, certified as of a recent date by an
appropriate officer of the Trust Company, (iii) its by-laws, (iv) the filed
Connecticut Certificate of Trust, and (iv) the

                                       13
<PAGE>

                                                         PARTICIPATION AGREEMENT

incumbency and signature of persons authorized to execute and deliver on its
behalf the Operative Documents to which it is a party.

        (h)     Environmental Audit. Each Agent shall have received an updated
Environmental Audit, dated no earlier than one (1) month prior to the
Documentation Date, for the Traville Facility in form and substance acceptable
to Administrative Agent, in its sole discretion, together with a reliance letter
from the firm conducting such Environmental Audit.

        (i)     Survey and Title Insurance. Lessee shall have delivered to each
Agent an ALTA/1992 (Urban) Survey of the Traville Facility prepared by a
licensed surveyor and meeting the Minimum Standard Detail Requirements for
ALTA/ASCM Land Title Surveys as adopted by the American Land Title
Association/American Society and American Congress on Surveying and Mapping in
1992 certified to each Investor and each Agent and the title company, and in
form and substance acceptable to Administrative Agent, in its sole discretion,
and a leasehold or loan policy in favor of Lessor, such policy to be dated as of
the Initial Advance Date and in an amount not less than $450,000,000 and to be
satisfactory to Administrative Agent, in its sole discretion, with
comprehensive, survey, variable rate, access and such other endorsements
requested by the Participants to the extent available in the State of Maryland.

        (j)     Recordation. Administrative Agent shall have received evidence
reasonably satisfactory to it that each of the Ground Lease or a memorandum
thereof, the Lease or a memorandum thereof, the Deeds of Trust and the
Assignment of Lease shall have been or are being recorded with the appropriate
Authorities in the order in which such documents are listed in this clause, and
the Financing Statements with respect to each Property shall have been or are
being filed with the appropriate Authorities.

        (k)     Evidence of Property Insurance. Lessor and each Agent shall
have received evidence of insurance with respect to the Traville Facility
required to be maintained pursuant to the Construction Agency Agreement, setting
forth the respective coverages, limits of liability, carrier, policy number and
period of coverage.

        (l)     Payment of Taxes. All Taxes payable on or before the
Documentation Date, for which Lessee is responsible and which are in connection
with the execution, delivery, recording or filing of any of the Operative
Documents or other documents, and the consummation of any other transactions
contemplated hereby or by any of the other Operative Documents, shall have been
paid in full by Lessee, or arrangements for such payment shall have been made to
the satisfaction of each Investor and each Agent (subject to Lessee's right to
contest certain Taxes pursuant to Section 9.2(b)).

        (m)     Representations and Warranties. Each representation and warranty
of each of the parties hereto contained herein or in any other Operative
Document shall be true and correct in all material respects as though made on
and as of the Documentation Date, except that any such representation or
warranty which is expressly made only as of a specified date need be true only
as of such date.

        (n)     Litigation. No action or proceeding shall have been instituted
or threatened nor shall any government action be instituted or threatened before
any Authority, nor shall any order,

                                       14
<PAGE>

                                                         PARTICIPATION AGREEMENT

judgment or decree have been issued or proposed to be issued by any Authority,
to set aside, restrain, enjoin or prevent the performance of this Participation
Agreement, any other Operative Document or any transaction contemplated hereby
or by any other Operative Document or which would have a Material Adverse
Effect.

        (o)     No Event of Loss. No casualty or loss shall have occurred in
respect of the Traville Facility. No action shall be pending or threatened by an
Authority to initiate a Condemnation or a taking by such Authority in respect of
Traville Facility.

        (p)     Legality, etc. In the opinion of Lessor, the Investors and each
Agent, the transactions contemplated by the Operative Documents shall not
violate any Applicable Laws and do not and will not subject Lessor to any
materially adverse regulatory prohibitions or constraints, and no change of
Applicable Laws has occurred or been proposed that would make it uneconomic or
illegal for any party to any Operative Document to participate in any of the
transactions contemplated by the Operative Documents or otherwise would prohibit
the consummation of any transaction contemplated by the Operative Documents or
materially expand the duties, obligations or risks of Lessor, the Investors,
Conduit, any Agent or the Liquidity Providers.

        (q)     Proceedings Satisfactory, etc. All proceedings taken in
connection with the Documentation Date, and all documents relating thereto shall
be reasonably satisfactory to Lessor, the Investors, Conduit, each Agent and
their respective counsel, and each such Person shall have received copies of
such documents as they may reasonably request in connection therewith, all in
form and substance reasonably satisfactory to each such Person.

        (r)     Traville Construction Materials. True and correct copies of the
Traville Construction Materials shall have been made available to Lessor,
Investors and each Agent.

        (s)     Appraisal. Each Investor and Liquidity Provider shall have
received a FIRREA qualified Appraisal of the Traville Facility, which Appraisal
shall show (a) the Fair Market Value of the Traville Facility as of the
Documentation Date and (b) the Fair Market Value of Lessor's interest in the
Traville Site and the Traville Improvements (free and clear of the Lien of the
Deeds of Trust and other Operative Documents) to be constructed thereon in
accordance with the Approved Traville Plans and Specifications (i) as of the
Lease Commencement Date with respect to the Traville Facility (the "Traville
As-Built Appraisal") and (ii) as of the fifth and the seventh anniversary of the
Lease Commencement Date with respect to the Traville Facility, and the economic
useful life of the Traville Improvements.

        (t)     Prescribed Forms. Each non-U.S. Person shall have delivered to
Lessee, Lessor and Conduit the Prescribed Forms.

        (u)     [Intentionally omitted.]

        (v)     Investment Policy. The Administrative Agent, each Collateral
Agent, each Investor, each Liquidity Provider and Conduit shall have received
from HGSI a copy of its current investment policy which has been approved by
their board, together with an officer's certificate certifying that the
investment policy is true, correct and complete.

                                       15
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (w)     Execution by Lessee, Ground Lessor, Ground Lessee and
Administrative Agent of a Mortgage Affidavit (the "Mortgage Affidavit")
substantially in the form attached hereto as Exhibit A-1 and presentment of the
Mortgage Affidavit to the Office of the General Counsel ("General Counsel") of
the Maryland-National Capital Park and Planning Commission and acceptance of the
Mortgage Affidavit by the General Counsel.

        (x)     A certificate from a licensed, independent architect in a form
reasonably satisfactory to Lessor that the Approved Plans and Specifications
with respect to the Traville Facility has been approved by the applicable
governmental entity(ies) and filed with such entity(ies).

        SECTION 4.2. Conditions to Initial Advance Date. The occurrence of the
Initial Advance Date and the obligation of each of Lessor, each Investor,
Administrative Agent, the Collateral Agents, Conduit, the Administrator and each
Liquidity Provider to perform its respective obligations, if any, on the Initial
Advance Date, including funding the Investor Contributions in the case of each
Investor, funding the Conduit Loans and issuing Commercial Paper Notes in the
case of Conduit, and providing Commitments, in the case of the Liquidity
Providers, shall be subject to the fulfillment to the reasonable satisfaction
(including, with respect to writings, such writings being in form and substance
reasonably satisfactory to the addressee or beneficiary thereof), or the waiver
by Lessor, each Investor, Conduit, the Administrator, Administrative Agent and
each Liquidity Provider, of the following conditions precedent set forth in this
Section 4.2 on or before the Initial Advance Date:

        (a)     Documentation Date. The Documentation Date shall have become
effective in accordance with Section 4.1.

        (b)     Transaction Costs. To the extent invoiced, all Transaction Costs
(including all fees payable to any party hereto on the Initial Advance Date)
then due and payable will be paid in full by Lessee or its designee in
accordance with such Advance Request solely from the proceeds of the Advances,
provided, that Lessee has received the proceeds of Advances for such purposes.
Payments of Transaction Costs to be paid on the Initial Advance Date shall be
made by wire transfer of immediately available funds by Administrative Agent as
designee of the Lessee to the accounts specified by the parties receiving such
payments. Lessee shall include in any Advance Request an amount for Transaction
Costs equal to the aggregate amount of invoices for Transaction Costs received
by Administrative Agent and Lessee at least two (2) Business Days prior to the
issuance of an Advance Request. Lessee shall deliver to Administrative Agent a
copy of all invoices for Transactions Costs promptly after receipt thereof.

        (c)     Initial Advance Date Notice. Lessee shall have delivered an
Advance Request conforming with the requirements of Section 2.2.5(a).

        (d)     Conduit Approval. If required pursuant to Conduit's commercial
paper program, the Administrator shall have received rating letters from Moody's
and S&P that, after giving effect to the transactions contemplated by the
Operative Documents, the Commercial Paper Notes of Conduit shall be rated P-1
and A-1, respectively.

                                       16
<PAGE>

                                                         PARTICIPATION AGREEMENT

        SECTION 4.3. Conditions Precedent to the Manufacturing Facility Site
Purchase Date and the Manufacturing Facility Site Purchase Advance. The
occurrence of the Manufacturing Facility Site Purchase Date, the Manufacturing
Facility Site Purchase Advance and the obligation of each of Lessor, each
Investor, Administrative Agent, the Collateral Agents, Conduit, the
Administrator and each Liquidity Provider to perform its respective obligations,
if any, on the Manufacturing Facility Site Purchase Date, including the purchase
of the Manufacturing Facility Site with respect to Lessor, the funding of the
Investor Contributions with respect to the Manufacturing Facility in the case of
each Investor, funding the Conduit Loans and issuing Commercial Paper Notes with
respect to the Manufacturing Facility in the case of Conduit, and providing
Commitments with respect to the Manufacturing Facility in the case of the
Liquidity Providers, shall be subject to the fulfillment to the reasonable
satisfaction (including, with respect to writings, such writings being in form
and substance reasonably satisfactory to the addressee or beneficiary thereof),
or the waiver by Lessor, each Investor, Conduit, the Administrator,
Administrative Agent and each Liquidity Provider, of the following conditions
precedent set forth in this Section 4.3 on or before the Manufacturing Facility
Site Purchase Date:

        (a)     Documentation Date. The Documentation Date shall have become
effective in accordance with Section 4.1.

        (b)     Initial Advance Date. The Initial Advance Date shall have become
effective in accordance with Section 4.2.

        (c)     Advance Request. Lessee shall have delivered an Advance Request
conforming with the requirements of Section 2.2.5(a).

        (d)     Insurance. Lessor and each Agent shall have received and
approved a report issued by the Independent Insurance Consultant with respect to
Lessee's compliance with its obligation to maintain insurance with respect to
the Manufacturing Facility in accordance with Section 2.7(f) of the Construction
Agency Agreement, which report shall be satisfactory to Lessor and the Agents in
all respects.

        (e)     Deeds of Trust Amendment. Lessor and each of the Participants
(or respective counsel for each such party) shall have received a fully executed
counterpart of the Deeds of Trust Amendment and the Deeds of Trust Amendment, to
the extent the same constitutes an agreement or undertaking, shall have been
duly authorized, executed and delivered by each of the parties thereto and shall
be in full force and effect.

        (f)     Consents and Approvals. All approvals and consents required to
be taken, given or obtained, as the case may be, by or from any Authority or
other Person, or by or from any trustee or holder of any indebtedness or
obligation of HGSI, that are necessary or, in the reasonable opinion of the
Participants, advisable in connection with the execution, delivery and
performance of the Deeds of Trust Amendment by all parties hereto, shall have
been taken, given or obtained as the case may be, shall be in full force and
effect and the time for appeal with respect thereto shall have expired (or, if
an appeal shall have been taken, the same shall have been dismissed) and shall
not be subject to any pending proceedings or appeals (administrative, judicial
or otherwise).

                                       17
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (g)     Environmental Audit. Each Agent shall have received an
Environmental Audit, dated no earlier than six (6) months prior to the
Manufacturing Facility Site Purchase Date, for the Manufacturing Facility in
form and substance acceptable to Administrative Agent, in its sole discretion,
together with a reliance letter from the firm conducting such Environmental
Audit.

        (h)     Survey and Title Insurance. Lessee shall have delivered to each
Agent an ALTA/1992 (Urban) Survey of the Manufacturing Facility prepared by a
licensed surveyor and meeting the Minimum Standard Detail Requirements for
ALTA/ASCM Land Title Surveys as adopted by the American Land Title
Association/American Society and American Congress on Surveying and Mapping in
1992 certified to each Investor and each Agent and the title company, and in
form and substance acceptable to Administrative Agent, in its sole discretion,
and a leasehold or loan endorsement to such policy in favor of Lessor, such
policy to be dated as of the Manufacturing Facility Site Purchase Date and in an
amount, when aggregated with the title policy for the Traville Facility, not
less than $450,000,000 and to be reasonably satisfactory to the Participants
with comprehensive, survey, variable rate, access and such other endorsements
requested by the Participants to the extent available in the State of Maryland.

        (i)     Recordation. Administrative Agent shall have received evidence
reasonably satisfactory to it that the Deeds of Trust Amendment shall have been
or are being recorded with the appropriate Authorities.

        (j)     Evidence of Property Insurance. Lessor and each Agent shall have
received evidence of insurance with respect to the Manufacturing Facility
required to be maintained pursuant to the Construction Agency Agreement, setting
forth the respective coverages, limits of liability, carrier, policy number and
period of coverage.

        (k)     Representations and Warranties. Each representation and warranty
of each of the parties hereto contained herein or in any other Operative
Document shall be true and correct in all material respects as though made on
and as of the Manufacturing Facility Site Purchase Date, except that any such
representation or warranty which is expressly made only as of a specified date
need be true only as of such date.

        (l)     Litigation. No action or proceeding shall have been instituted
or threatened nor shall any government action be instituted or threatened before
any Authority, nor shall any order, judgment or decree have been issued or
proposed to be issued by any Authority, to set aside, restrain, enjoin or
prevent the performance of this Participation Agreement, any other Operative
Document or any transaction contemplated hereby or by any other Operative
Document or which would have a Material Adverse Effect.

        (m)     No Event of Loss. No casualty or loss shall have occurred in
respect of the Manufacturing Facility. No action shall be pending or threatened
by an Authority to initiate a Condemnation or a taking by such Authority in
respect of the Manufacturing Facility.

        (n)     Legality, etc. In the opinion of Lessor, the Investors and each
Agent, the transactions contemplated by the Operative Documents shall not
violate any Applicable Laws and do not and will not subject Lessor to any
materially adverse regulatory prohibitions or constraints, and no change of
Applicable Laws has occurred or been proposed that would make it

                                       18
<PAGE>

                                                         PARTICIPATION AGREEMENT

uneconomic or illegal for any party to any Operative Document to participate in
any of the transactions contemplated by the Operative Documents or otherwise
would prohibit the consummation of any transaction contemplated by the Operative
Documents or materially expand the duties, obligations or risks of Lessor, the
Investors, Conduit, any Agent or the Liquidity Providers.

        (o)     Proceedings Satisfactory, etc. All proceedings taken in
connection with the Manufacturing Facility Site Purchase Date, and all documents
relating thereto shall be reasonably satisfactory to Lessor, the Investors,
Conduit, each Agent and their respective counsel, and each such Person shall
have received copies of such documents as they may reasonably request in
connection therewith, all in form and substance reasonably satisfactory to each
such Person.

        (p)     Manufacturing Construction Materials. True and correct copies of
the Manufacturing Construction Materials shall have been made available to
Lessor, Investors and each Agent.

        (q)     Appraisal. Each Investor and Liquidity Provider shall have
received a FIRREA qualified Appraisal of the Manufacturing Facility, which
Appraisal shall show (a) the Fair Market Value of the Manufacturing Facility as
of the Manufacturing Facility Site Purchase Date and (b) the Fair Market Value
of Lessor's interest in the Manufacturing Facility Site and the Manufacturing
Facility Improvements (free and clear of the Lien of the Deeds of Trust, Deeds
of Trust Amendment and other Operative Documents) to be constructed thereon in
accordance with the Approved Manufacturing Plans and Specifications (i) as of
the Lease Commencement Date with respect to the Manufacturing Facility (the
"Manufacturing As-Built Appraisal") and (ii) as of the fifth and the seventh
anniversary of the Lease Commencement Date with respect to the Manufacturing
Facility, and the economic useful life of the Manufacturing Facility
Improvements.

        (r)     Flood Zone Determination. Administrative Agent shall have
received a Flood Zone Determination with respect to the Manufacturing Facility
Site that states that no portion of the Manufacturing Facility Site is located
in an area identified as a special flood hazard area by the Federal Emergency
Management Agency or other applicable agency.

        SECTION 4.4. Conditions Precedent to each Advance. The obligations of
Lessor to make an Advance on an Advance Date (including the Initial Advance Date
and the Manufacturing Facility Site Purchase Date), the obligation of the
Investors to make any related Investor Contribution available on such Advance
Date and the obligation of each Lender to make any related Loans on such Advance
Date, are subject to the conditions that (a) each Investor and Agent shall have
received a copy of the applicable Advance Request, the original of which shall
be sent to Lessor, executed by Lessee, in accordance with and to the extent
required by Section 2.2.5, (b) Lessee shall have delivered Permitted Investments
to each Collateral Agent in an aggregate amount such that after each such
transfer the Adjusted Market Value or Fair Market Value, whichever is
applicable, of all Liquid Collateral in each such Account on such date equals or
exceeds the Required Liquid Collateral Amount for each such Account for such
date (determined after giving effect to the requested Advance), and the
Collateral Agents shall have a first priority perfected security interest
therein securing the Lessee Obligations, (c) the

                                       19
<PAGE>

                                                         PARTICIPATION AGREEMENT

representations and warranties contained in each Operative Document are correct
in all material respects on and as of such Advance Date, before and after giving
effect to such Advance and to the application of the proceeds therefrom, as
though made on and as of such date, other than any such representations or
warranties that, by their terms, refer to a specific date other than the date of
such Advance, in which case of such specific date, and (d) no Default or Event
of Default has occurred and is continuing, or would result from such Advance or
from the application of the proceeds therefrom.

        SECTION 4.5. Lease Commencement Upon Substantial Completion. Unless the
Construction Agency Agreement has been terminated as a result of a Construction
Agency Event of Default, the parties hereto acknowledge and agree that upon the
occurrence of Substantial Completion with respect to a Property, such Property
shall automatically, without further act or notice by any Person, become subject
to, and shall be leased by Lessor to Lessee under, the Lease.

                                   ARTICLE V

                         REPRESENTATIONS AND WARRANTIES

        SECTION 5.1. Representations and Warranties of Lessee. As of the
Documentation Date and as of each Advance Date (provided, that any
representation or warranty made as of a specific date need only be true as of
such date), Lessee (in its capacity as both Lessee and Construction Agent)
represents and warrants to each of the other parties hereto that:

        (a)     General Matters.

                (i)     Lessee is a corporation duly organized, validly existing
        and in good standing under the laws of the State of Delaware, and its
        failure to qualify to do business in any other jurisdiction where it is
        not so qualified has not had, and will not have, a Material Adverse
        Effect; and Lessee has all necessary corporate power to enter into and
        perform its obligations under each Lessee Operative Document and to
        lease the Properties under the Lease.

                (ii)    The execution, delivery and performance by Lessee of
        each Lessee Operative Document have been duly authorized by all
        necessary corporate action and will not (A) violate any provision of its
        certificate of incorporation or (B) violate any provision of law
        applicable to such Lessee or by which it or its property may be bound,
        or result in the breach of or constitute a default or require any
        consent under, or result in the creation of any Lien (except as provided
        under the Operative Documents) upon any property or assets of Lessee
        pursuant to any indenture, agreement or instrument to which Lessee is a
        party or by which Lessee or its property may be bound, in any such case
        set forth in this clause (B) which has had, or would be reasonably
        likely to have, a Material Adverse Effect. Except with respect to the
        matters described in Section 5.1(o), neither the execution by Lessee of
        any Lessee Operative Document nor the performance by Lessee of its
        obligations under any Lessee Operative Document requires any license,
        consent or approval of, or notice to, or filing with, any Authority
        (other than customary building permits obtained in the ordinary course
        of business which Lessee has no reason

                                       20
<PAGE>

                                                         PARTICIPATION AGREEMENT

        to believe will not be forthcoming). This Participation Agreement and
        each other Lessee Operative Document has been duly executed and
        delivered by Lessee and, assuming the due authorization, execution and
        delivery by the other parties hereto, constitutes its legal, valid and
        binding obligation, enforceable in accordance with its terms, except as
        the same may be limited by insolvency, bankruptcy, reorganization or
        other laws relating to or affecting the enforcement of creditors' rights
        or by general equitable principles.

                (iii)   Neither Lessee nor any of its subsidiaries is engaged
        principally, or as one of its important activities, in the business of
        extending credit for the purpose of purchasing or carrying margin stock
        (within the meaning of Regulation U or X of the Board of Governors of
        the Federal Reserve System). Neither Lessee nor any of its material
        subsidiaries is an "investment company" or a company "controlled" by an
        "investment company," within the meaning of the Investment Company Act
        of 1940. The receipt by Lessee of the proceeds of the Advances, and each
        use of such proceeds to pay Improvement Costs, shall not be in violation
        of any Applicable Laws.

                (iv)    The outstanding debt for borrowed money of Lessee does
        not, and no funding under the Operative Documents when made will cause
        such debt to, exceed the amount authorized by such Lessee's board of
        directors to be outstanding.

                (v)     Except as disclosed on Schedule 5.1(a)(v), there is no
        action, suit or proceeding (including but not limited to environmental
        matters), and no such proceeding before any arbitrator or by or before
        any governmental commission, board, bureau or other administrative
        agency, is pending, or, to the knowledge of Lessee, is threatened
        against Lessee or any consolidated subsidiary of Lessee which, in the
        good faith belief of Lessee, has a reasonable possibility of being
        adversely determined in a manner which would have a Material Adverse
        Effect.

                (vi)    Neither Lessee nor any of its Affiliates has granted any
        Lien (other than Permitted Liens) on either Property to any Person other
        than Lessor, Conduit, the Collateral Agent, the Liquidity Providers,
        Administrative Agent and each Investor, and no Lien, other than the Lien
        granted to such Persons hereunder and under the other Operative
        Documents and Permitted Liens, has attached to either Property, or in
        any manner has affected adversely the rights and security interest of
        such Persons therein.

                (vii)   Neither Lessee nor anyone authorized to act on its
        behalf has, directly or indirectly, in violation of Section 5 of the
        Securities Act or any state securities laws, offered or sold any
        interest in either Property, the Lease, the Investor Certificates or the
        Notes, or in any security or lease the offering of which, for purposes
        of the Securities Act or any state securities laws, would be deemed to
        be part of the same offering as the offering of the aforementioned
        items, or solicited any offer to acquire any of the aforementioned items
        from any Person other than an "accredited investor" (as such term is
        defined in the Securities Act). The foregoing shall not be deemed an
        acknowledgment that any of the Notes or Investor Certificates, or any
        interest in the Properties or the Lease, constitutes a "security".

                                       21
<PAGE>

                                                         PARTICIPATION AGREEMENT

                (viii)  The execution and delivery by Lessee of the Operative
        Documents to which it is a party does not require the consent or
        approval of, or the giving of notice to or registration with, or the
        taking of any other action in respect of, any Authority or other body
        governing its business practices, other than (if Lessee so determines)
        the filing of a Form 8-K with the SEC.

                (ix)    Lessee has complied with its disclosure and reporting
        obligations under the Securities Exchange Act of 1934, as amended.

        (b)     Principal Place of Business and Chief Executive Office of
Lessee. The principal place of business and chief executive office, as such
terms are used in Section 9-103(3) of the UCC, of Lessee are each located at
9410 Key West Avenue, Rockville, MD 20850. The organizational identification
number assigned by Delaware to Lessee is 2302223 (Del.).

        (c)     Taxes. All United States Federal income tax returns and all
other tax returns which are required to have been filed have been or will be
filed by or on behalf of Lessee by the respective due dates, including
extensions, and all taxes due with respect to Lessee pursuant to such returns or
pursuant to any assessment received by Lessee have been or will be paid. The
charges, accruals and reserves on the books of Lessee in respect of such taxes
or other governmental charges are, in the opinion of Lessee, adequate.

        (d)     Compliance with ERISA. Each of the matters set forth below in
this Section 5.1(e) is subject to the truth of the representations set forth in
Sections 5.4(a) and 5.5(b), and the covenants set forth in Section 6.2(e). Each
member of the ERISA Group has fulfilled its obligations under the minimum
funding standards of ERISA and the Code with respect to each Plan and is in
compliance in all respects with the presently applicable provisions of ERISA and
the Code with respect to the Plan except when such noncompliance would result in
penalties of less than $10,000,000. No member of the ERISA Group has (i) sought
a waiver of the minimum funding standard under Section 412 of the Code in
respect of any Plan within the preceding five (5) years, (ii) failed to make any
contribution or payment to any Plan, or made any amendment to any Plan which has
resulted or is likely to result in the imposition of a Lien or the posting of a
bond or other security under ERISA or the Code or (iii) incurred any liability
under Title IV of ERISA other than a liability to the PBGC for premiums under
Section 4007 of ERISA. No termination of a Plan has occurred and no steps have
been taken to institute the termination of any Plan. No member of the ERISA
Group has any knowledge of any event that is likely to result in a liability of
any such member to the PBGC, whether under a Plan, a Multiemployer Plan, or
otherwise, other than a liability to the PBGC for premiums under Section 4007 of
ERISA. No lien in favor of the PBGC or a Plan has arisen, and there have not
been any nor are there now existing any events or conditions that would permit
any Plan to be terminated under circumstances that would cause the lien provided
under Section 4068 of ERISA to attach to the material assets of Lessee or its
ERISA Affiliates. The value of the Plans' benefits guaranteed under Title IV of
ERISA on the date hereof does not exceed the value of such Plans' assets
allocable to such benefits as of the date of this Participation Agreement. No
"Prohibited Transaction" within the meaning of Section 406 of ERISA will exist
with respect to a Benefit Arrangement upon the execution and delivery of this
Participation Agreement or any Operative Document.

                                       22
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (e)     Defaults. No Bankruptcy Default or Construction Agency Event of
Default has occurred and is continuing.

        (f)     Insurance Coverage. Lessee maintains insurance coverage for the
Sites and the Improvements thereon which meets the requirements of the
Construction Agency Agreement and all of such coverage is in full force and
effect.

        (g)     Subjection to Government Regulation.

                (i)     Lessee is not subject to regulation under any law which
        prohibits, or requires consent from any Authority prior to, the
        incurring by it of indebtedness or the entering into of the transactions
        described herein.

                (ii)    None of Lessor, any Agent or any Participant will become
        (A) solely by reason of entering into the Operative Documents or
        consummation of the transactions contemplated thereby (other than upon
        exercise of remedies under the Lease or other Operative Document or upon
        the expiration or termination thereof) subject to ongoing regulation of
        its operations by any Authority having jurisdiction; or (B) except for
        regulation the applicability of which depends upon the status of the
        Participants as banks or other regulated financial institutions or upon
        the existence of facts in addition to the ownership of, or the holding
        of any interest in, the Properties or any interest therein upon the
        exercise of remedies under the Lease or other Operative Document or upon
        the expiration or termination thereof, subject to ongoing regulation of
        its operations by any Authority having jurisdiction solely by reason of
        its business activities contemplated in the Operative Documents or the
        nature of the Properties.

        (h)     No Liens. Neither Lessee nor any of its Affiliates has created,
consented to, incurred or suffered to exist any Lien upon either Property or any
portion thereof other than Permitted Liens, subject to Permitted Contests.

        (i)     Properties. Upon Substantial Completion of a Property, such
Property as improved in accordance with the applicable Plans and Specifications
for such Property and the contemplated use thereof by Lessee and its agents,
assignees, employees, lessees, licensees and tenants will comply in all material
respects with all Insurance Requirements and Applicable Laws (including all
zoning and land use laws and Environmental Laws) other than having obtained
certain governmental approvals in respect of the operation and manufacturing
processes to be located at the Manufacturing Facility, which approvals Lessee
expects to obtain in the ordinary course of its business.

        (j)     Plans and Specifications. With respect to both Properties, upon
Substantial Completion of a Property all water, sewer, electric, gas, telephone
and drainage facilities and all other utilities required to adequately service
the Improvements on such Property for their intended use will be available
pursuant to adequate permits (including any that may be required under
applicable Environmental Laws). Except as notified to Lessor, no fire or other
casualty with respect to either Property has occurred which fire or other
casualty is expected to result in replacement or restoration costs in excess of
$1,000,000. With respect to both Properties, upon Substantial Completion of a
Property, such Property will have available all material services of

                                       23
<PAGE>

                                                         PARTICIPATION AGREEMENT

public facilities and other utilities necessary for use and operation of such
Property and the other Improvements on such Property for their primary intended
purposes including adequate water, gas and electrical supply, storm and sanitary
sewerage facilities, telephone, other required public utilities and means of
access between such Improvements and public highways for motor vehicles. With
respect to both Properties, all utilities serving a Property, or proposed to
serve a Property in accordance with the related Plans and Specifications for
such Property, are located in, and vehicular access to the Improvements on such
Property is provided by, either public rights-of-way abutting such Property or
Appurtenant Rights. With respect to both Properties, all requirements of
Applicable Law, easements and rights-of-way, including proof and dedication,
required for (x) the use, treatment, storage, transport, disposal or disposition
of any Hazardous Material on, at, under or from a Property during the
construction of the Improvements thereon, and (y) construction of the
Improvements on a Property in accordance with the applicable Plans and
Specifications for such Property and the Construction Agency Agreement have
either been irrevocably obtained from the appropriate Governmental Authorities
having jurisdiction or from private parties, as the case may be, or will be
irrevocably obtained from the appropriate Governmental Authorities having
jurisdiction or from private parties, as the case may be, prior to commencing
any such construction or use and operation, as applicable, or in the course of
the Construction in accordance with reasonably prudent construction practice.

        (k)     Title to the Land.

                (i)     Ground Lessor owns title to the Traville Site in fee
        simple, subject only to Permitted Liens. The Ground Lease is in form and
        substance sufficient to convey a valid leasehold estate to Lessor,
        subject only to Permitted Liens. Lessor will at all times during the
        Construction Period and the Lease Term have good and marketable title to
        a valid leasehold estate in the Traville Site and in fee simple to all
        Improvements located on the Traville Site, in each case subject only to
        Permitted Liens. Ground Lessor will at all times during the Construction
        Period and the Lease Term have good and marketable title in fee simple
        to the Traville Site subject only to Permitted Liens.

                (ii)    Upon the occurrence of the Manufacturing Facility Site
        Purchase Date, Lessor shall own title to the Manufacturing Facility Site
        in fee simple, subject only to Permitted Liens. Upon the occurrence of
        the Manufacturing Facility Site Purchase Date, Lessor will at all times
        during the Construction Period and Lease Term have good and marketable
        title in fee simple to the Manufacturing Facility Site and Improvements
        thereon subject only to Permitted Liens.

        (l)     Flood Hazard Areas.

                (i)     Except as otherwise identified on the survey delivered
        pursuant to Section 4.1(i), no portion of the Traville Facility is
        located in an area identified as a special flood hazard area by the
        Federal Emergency Management Agency or other applicable agency. If the
        Traville Facility is located in an area identified as a special flood
        hazard area by the Federal Emergency Management Agency or other
        applicable agency, then flood insurance has been obtained for the
        Traville Facility in accordance with the Lease and in accordance with
        the National Flood Insurance Act of 1968, as amended.

                                       24
<PAGE>

                                                         PARTICIPATION AGREEMENT

                (ii)    Except as otherwise identified on the survey delivered
        pursuant to Section 4.3(h), no portion of the Manufacturing Facility is
        located in an area identified as a special flood hazard area by the
        Federal Emergency Management Agency or other applicable agency. If the
        Manufacturing Facility is located in an area identified as a special
        flood hazard area by the Federal Emergency Management Agency or other
        applicable agency, then flood insurance has been obtained for the
        Manufacturing Facility in accordance with the Lease and in accordance
        with the National Flood Insurance Act of 1968, as amended.

        (m)     Lease. Upon Substantial Completion of a Property (i) Lessee will
have unconditionally accepted such Property demised under the Lease (provided
that nothing contained herein shall be deemed a waiver by Lessee of any right of
action against Persons with respect to title to and condition of the Traville
Facility on the Initial Advance Date or the Manufacturing Facility on the
Manufacturing Facility Site Purchase Date other than Lessor, the Investors and
the Lenders) and will have good and marketable title to a valid and subsisting
sublease in the Land comprising a portion of such Property and leasehold
interest in the Improvements comprising a portion of such Property, subject only
to Permitted Liens, (ii) no right of offset will exist with respect to any Rent
or other sums payable under the Lease and (iii) except as provided in the
Operative Documents, no Rent under the Lease will have been prepaid.

        (n)     Appraisal Data. The information provided by Lessee and its
Affiliates to the Appraiser identified in Schedule IV and forming the basis for
the conclusions set forth in the Appraisals delivered pursuant to Sections
4.1(s) and 4.3(q), was true and correct in all material respects and did not,
when taken as a whole, omit any information requested by the Appraiser actually
known and available to Lessee necessary to make the information provided not
materially misleading.

        (o)     Filings. Except with respect to the filings identified on
Schedule III, no other filings or recordings are necessary to convey validly and
effectively to the Secured Parties such interest in the Lease, each Property and
all other Collateral as contemplated by the Operative Documents, in each case
free of all Liens other than Permitted Liens.

        (p)     Artifacts. No historically significant artifacts, structures,
dwellings, remains or antiques exist or are located in or on the surface terrain
or sub-terrain estate of either of the Traville Site or the Manufacturing
Facility Site, the presence or discovery of which will cause a delay in the
completion of the Construction.

        (q)     Intentionally Omitted.

        (r)     Financial Statements. The balance sheet of Lessee as of June 30,
2001 and the related statement of income and cash flows of Lessee and its
consolidated subsidiaries, a copy of which has been delivered to each Agent and
to each Participant fairly present, in conformity with GAAP, the financial
position of Lessee and its consolidated subsidiaries as of such date. All
material contingent obligations, contingent liabilities or other obligations
have been properly reflected on the balance sheet and notes thereto referred to
above in conformance with GAAP.

                                       25
<PAGE>

                                                         PARTICIPATION AGREEMENT

Since December 31, 2000, there have been no changes with respect to Lessee or
its consolidated subsidiaries which has had, or will have, a Material Adverse
Effect.

        (s)     Disclosure. No representation or warranty contained in any
Operative Document, or in any other document or financial statement furnished
from time to time in either case by Lessee or its Affiliates pursuant to the
terms of any Operative Document, contains or will contain any untrue statement
of a material fact or omit or will omit to state any material fact necessary to
make the statement herein or therein not misleading in any material respect as
of the date made or deemed to be made. There is no fact known to Lessee which is
having, or is reasonably expected to have, a Material Adverse Effect.

        (t)     Compliance With Law. Each Property and the current use and
operation thereof and thereon do not violate any Applicable Laws, including any
thereof relating to occupational safety and health or Environmental Laws, in a
manner or to an extent that could reasonably be expected to have a Material
Adverse Effect. Except for such matters as could not reasonably be expected to
result in a Material Adverse Effect, each Property and the use thereof by it and
its agents, assignees, employees, invitees, lessees, licensees and tenants
complies with Applicable Laws (including, without limitation, all Environmental
Laws) and insurance requirements.

        (u)     Transferability of Traville Site. The Traville Facility will be
legally transferable without restrictions as if it were a legally subdivided lot
under Maryland Applicable Laws upon execution and filing of the Mortgage
Guideline Affidavit with the Maryland National Park and Planning Commission.

        SECTION 5.2. Representations and Warranties of Ground Lessor. As of the
Documentation Date, Ground Lessor represents and warrants to Lessor, each Agent
and each Participant that:

        (a)     Due Organization, etc. Ground Lessor is a duly organized and
validly existing limited liability company in good standing under the laws of
the State of Maryland.

        (b)     Power and Authority; Enforceability. Ground Lessor has the power
and authority to execute, deliver and carry out the terms and provisions of the
Operative Documents to which it is or will be a party and has taken all
necessary action to authorize the execution, delivery and performance of the
Operative Documents to which it is a party and has duly executed and delivered
each Operative Document required to be executed and delivered by it and,
assuming the due authorization, execution and delivery thereof on the part of
each other party thereto, each such Operative Document constitutes a legal,
valid and binding obligation enforceable against it in accordance with its
terms, except as the same may be limited by insolvency, bankruptcy,
reorganization or other laws relating to or affecting the enforcement of
creditors' rights or by general equitable principles.

        (c)     No Violation. Neither the execution, delivery and performance by
Ground Lessor of the Operative Documents to which it is or will be a party nor
compliance with the terms and provisions thereof, nor the consummation by Ground
Lessor of the transactions contemplated therein (i) will result in a violation
by Ground Lessor of any applicable provision of any law, statute, rule,
regulation, order, writ, injunction or decree of any court or Authority having

                                       26
<PAGE>

                                                         PARTICIPATION AGREEMENT

jurisdiction over Ground Lessor or the Traville Facility, that would have a
Material Adverse Effect, (ii) violate or result in any breach which would
constitute a default under, or (other than pursuant to the Operative Documents)
result in the creation or imposition of (or the obligation to create or impose)
any Lien upon any of the property or assets of Ground Lessor pursuant to the
terms of any indenture, loan agreement or other agreement to which Ground Lessor
is a party or by which it or any of its property or assets is bound or to which
it may be subject (other than Permitted Liens), or (iii) will violate any
provision of the certificate of formation or by-laws (or similar organizational
documents) of Ground Lessor.

        (d)     No Approvals, etc. The execution and delivery by Ground Lessor
of the Operative Documents to which it is a party does not require the consent
or approval of, or the giving of notice to or registration with, or the taking
of any other action in respect of, any Authority or other body governing its
business practices.

        (e)     Disclosure. No representation or warranty contained in any
Operative Document, or in any other document or financial statement furnished
from time to time in either case by Lessee or its Affiliates pursuant to the
terms of any Operative Document, contains or will contain any untrue statement
of a material fact or omit or will omit to state any material fact necessary to
make the statement herein or therein not misleading in any material respect as
of the date made or deemed to be made. There is no fact known to Ground Lessor
which is having, or is reasonably expected to have, a Material Adverse Effect.

        SECTION 5.3. Representations and Warranties of Trustee, the Trust and
the Trust Company. Trustee, the Trust and the Trust Company (solely as to
paragraphs (a)(i), (b) and (c) only as to the agreements to which the Trust
Company is a party, and (d), (e) and (f), only as to the Trust Company)
represent and warrant to Lessee and the Participants that:

        (a)     Corporate Status. (i) The Trust Company is a duly organized and
validly existing national banking association in good standing under the laws of
the United States and (ii) each of Trustee and the Trust is duly qualified,
authorized to do business and in good standing in all jurisdictions where the
failure to do so might have a material adverse effect on it or its properties.

        (b)     Corporate Power and Authority. Trustee, the Trust and the Trust
Company each has the power and authority to execute, deliver and carry out the
terms and provisions of the Operative Documents to which it is or will be a
party and has taken all necessary corporate action to authorize the execution,
delivery and performance of the Operative Documents to which it is a party and
has duly executed and delivered each Operative Document required to be executed
and delivered by it and, assuming the due authorization, execution and delivery
thereof on the part of each other party thereto, each such Operative Document
constitutes a legal, valid and binding obligation enforceable against it in
accordance with its terms, except as the same may be limited by insolvency,
bankruptcy, reorganization or other laws relating to or affecting the
enforcement of creditors' rights or by general equitable principles

        (c)     No Violation. Neither the execution, delivery and performance by
Trustee, the Trust or the Trust Company of the Operative Documents to which it
is or will be a party nor compliance with the terms and provisions thereof, nor
the consummation by Trustee, the Trust or the Trust Company of the transactions
contemplated therein (i) will result in a violation by

                                       27
<PAGE>

                                                         PARTICIPATION AGREEMENT

Trustee, the Trust or the Trust Company of any applicable provision of any
Connecticut or federal law, statute, rule, regulation, order, writ, injunction
or decree of any court or governmental instrumentality governing the banking or
trust powers of the Trustee, the Trust, the Trust Company or the Properties that
would adversely affect (x) the validity or enforceability of the Operative
Documents to which Trustee, the Trust or the Trust Company is a party, or the
title to, or value or condition of, the Properties, or (y) the consolidated
financial position, business, prospects or consolidated results of operations of
Trustee, the Trust or the Trust Company or the ability of Trustee, the Trust or
the Trust Company to perform its obligations under the Operative Documents, (ii)
violate or result in any breach which would constitute a default under, or
(other than pursuant to the Operative Documents) result in the creation or
imposition of (or the obligation to create or impose) any Lien upon any of the
property or assets of Trustee or the Trust or the Trust Company pursuant to the
terms of any indenture, loan agreement or other agreement for borrowed money to
which Trustee or the Trust or the Trust Company is a party or by which it or any
of its property or assets is bound or to which it may be subject (other than
Permitted Liens), or (iii) will violate any provision of the Articles of
Association or by-laws of Trust Company.

        (d)     No Approvals, etc. The execution and delivery by the Trust
Company or (assuming the due authorization, execution and delivery of the Trust
Agreement by the Investors) Trustee or the Trust, as the case may be, of the
Operative Documents to which it is a party does not require the consent or
approval of, or the giving of notice to or registration with, or the taking of
any other action in respect of, any Authority or other body governing its
banking practices.

        (e)     Litigation. There is no action, proceeding or investigation
pending or threatened against the Trust Company or Trustee or the Trust which
questions the validity of the Operative Documents, and there is no action,
proceeding or investigation pending or threatened which is likely to result,
either in any case or in the aggregate, in any material adverse change in the
ability of the Trust Company or Trustee or the Trust to perform their respective
obligations under the Operative Documents.

        (f)     Lessor Liens. Each Property and the Operative Documents and
amounts payable thereunder are free of Lessor Liens attributable to it (other
than any liens granted pursuant to the Operative Documents).

        (g)     Securities Act. Neither Lessor nor any Person authorized by
Lessor to act on its behalf has offered or sold any interest in the Notes, the
Investor Certificates or the Lease, or in any similar security relating to the
Properties, or in any security the offering of which for the purposes of the
Securities Act would be deemed to be part of the same offering as the offering
thereof, or solicited any offer to acquire any of the same from, any Person
other than the parties hereto, and neither it nor any Person authorized by it to
act on its behalf will take any action which would subject the issuance or sale
of any interest in the Notes, the Investor Certificates or the Lease or in any
similar security related to the Properties to the provisions of Section 5 of the
Securities Act or require the qualification of any Operative Document under the
Trust Indenture Act of 1939. The foregoing shall not be deemed an acknowledgment
that any of the Notes or Investor Certificates, or any interest in the
Properties or the Lease, constitutes a "security".

                                       28
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (h)     Chief Place of Business. Lessor's chief place of business, chief
executive office and office where the documents, accounts and records relating
to the transactions contemplated by this Participation Agreement and each other
Operative Document are and will be kept is located at c/o 79 South Main Street,
Salt Lake City, Utah 84111.

        (i)     No Other Activities. Lessor does not hold any assets, conduct
any business nor is it party to any document, agreement or instrument other than
its interests under any Operative Documents to which it is a party.

        SECTION 5.4. Representations of the Investors. As of the Documentation
Date and, with respect to Section 5.4(a), as of each Advance Date, each Investor
represents and warrants to the other parties to this Participation Agreement
that:

        (a)     ERISA. Such Investor is not funding its investment in Lessor,
and is not performing its obligations under the Operative Documents, with the
assets of an "employee benefit plan" (as defined in Section 3(3) of ERISA) which
is subject to Title I of ERISA, or "plan" (as defined in Section 4975(e)(1) of
the Code).

        (b)     Power and Authority. Such Investor has the requisite power and
authority to enter into and perform under the Operative Documents to which it is
a party.

        (c)     Binding Effect. This Participation Agreement and the other
Operative Documents to which it is a party constitute the legal, valid and
binding obligations of it, enforceable against it in accordance with their
respective terms except as such enforceability may be limited by any applicable
bankruptcy, insolvency or similar laws affecting the enforcement of creditors'
rights generally and by general principles of equity. It has taken all necessary
corporate action to authorize the execution, delivery and performance of this
Participation Agreement and each other Operative Document to which it is a party
and has duly executed and delivered each Operative Document required to be
executed and delivered by it.

        (d)     Investment. Such Investor is making its investment in the
Investor Certificate and the transaction contemplated hereby for its own account
and not with a view to any distribution thereof; except that the disposition of
any interest in such investment shall be at all times within the control of such
Investor, subject to the restrictions of Article VIII.

        (e)     Lessor Liens. Each Property is free of Lessor Liens attributable
to it.

        SECTION 5.5. Representations of Liquidity Providers. As of the
Documentation Date (or, with respect to any Liquidity Provider becoming party
hereto after the Documentation Date, as of the date such Liquidity Provider
becomes party hereto) and, with respect to Section 5.5(b), as of each Advance
Date, each Liquidity Provider hereby represents and warrants to Lessee, Lessor,
each Agent and each of the other Participants that:

        (a)     Facility Loans; Percentage Interests. Such Liquidity Provider is
making its Facility Loans and its purchase of Percentage Interests and is
entering into the transaction contemplated hereby for its own account and not
with a view to any distribution thereof; except that the disposition of any
interest in such loans and interests shall be at all times within the control of
such Liquidity Provider, subject to the restrictions of Article VIII.

                                       29
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (b)     ERISA. Such Liquidity Provider is not funding its portion of the
Advances, and is not performing its obligations under the Operative Documents,
with the assets of an "employee benefit plan" (as defined in Section 3(3) of
ERISA) which is subject to Title I of ERISA, or "plan" (as defined in Section
4975(e)(1) of the Code).

        SECTION 5.6. Representations of Agents. As of the Documentation Date
(or, with respect to any Agent becoming party hereto after the Documentation
Date, as of the date such Agent becomes party hereto), each Agent hereby
represents and warrants to Lessee, HGSI, Lessor, each other Agent and each
Participant that:

        (a)     Corporate Existence and Power. It is, respectively, a banking
association or corporation duly organized, validly existing and in good standing
under the laws of the jurisdiction of its organization and has all corporate
powers and all material governmental licenses, authorizations and approvals
required to perform its obligations hereunder and under the other Operative
Documents to which it is a party.

        (b)     Binding Effect. This Participation Agreement and the other
Operative Documents to which it is a party constitute the legal, valid and
binding obligations of it, enforceable against it in accordance with their
respective terms except as such enforceability may be limited by any applicable
bankruptcy, insolvency or similar laws affecting the enforcement of creditors'
rights generally and by general principles of equity. It has taken all necessary
corporate action to authorize the execution, delivery and performance of this
Participation Agreement and each other Operative Document to which it is a party
and has duly executed and delivered each Operative Document required to be
executed and delivered by it.

        (c)     No Violation. Neither the execution, delivery and performance by
it of the Operative Documents to which it is or will be a party nor compliance
with the terms and provisions thereof, nor the consummation of the transactions
contemplated therein, (i) will contravene any Applicable Laws or (ii) will
violate any provision of its certificate of incorporation or by-laws.

        (d)     No Approvals, etc. The execution and delivery by it of the
Operative Documents to which it is a party does not require the consent or
approval of, or the giving of notice to or registration with, or the taking of
any other action in respect of, any Authority having jurisdiction over it.

                                   ARTICLE VI

                            COVENANTS AND AGREEMENTS

        SECTION 6.1. Covenants of Lessee and Construction Agent. Except as
specifically provided below, during the Construction Period and the Lease Term,
if any, HGSI, as Lessee and as Construction Agent, covenants with each of the
other parties hereto as follows:

        (a)     Change of Name or Location. Lessee shall furnish to Lessor and
each Agent notice on or before the thirtieth (30th) day before any relocation of
its chief executive office or principal place of business, or change of its name
or identity.

                                       30
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (b)     Construction Notices.

                (i)     During the Construction Period, Construction Agent from
        time to time shall deliver to Lessor and each Agent an Officer's
        Certificate, which Officer's Certificate shall state whether or not
        there exists a Construction Agency Default or Construction Agency Event
        of Default and whether or not the Sites are In Balance, and shall attach
        a monthly report in the form of Exhibit B hereto. Such Officer's
        Certificate and report shall be delivered together with any Advance
        Request delivered by Lessee and, if no such Advance Request is delivered
        by Lessee in any calendar month, then such Officer's Certificate and
        report shall be delivered on the last Business Day of such calendar
        month.

                (ii)    Construction Agent shall make available to
        Administrative Agent and Construction Consultant for inspection and
        copying no later than the fifth day of each calendar month: (A) copies
        of all Material Construction Documents entered into in the preceding
        calendar month; (B) copies of all change orders, changes to either the
        Traville Construction Materials or Manufacturing Construction Materials,
        notices, requests for any increase of any contract sum payable, or other
        communication received under or in connection with any Material
        Construction Document which either (x) seeks to materially increase the
        total consideration payable under any Material Construction Document, or
        (y) asserts that Construction Agent or any other party to any Material
        Construction Document is in material breach or default, or with notice
        and lapse of time or both will be in material breach or default under
        any Material Construction Document; (C) upon reasonable request by
        Lessor, a list of the names and addresses of the subcontractors with
        whom written agreements have been made by Construction Agent and (D)
        such other information as may be reasonably requested (in light of
        Lessee's and Construction Agent's obligations to provide information or
        documents contained herein or in the other Operative Documents) by
        Lessor regarding the status of (and to the extent reasonably available
        to Construction Agent, the parties to material agreements relating to)
        the Construction, compliance of the parties to the Construction
        Documents with the terms thereof, and amounts due and payable under the
        Construction Documents, including, without limitation, such information
        as Lessor shall reasonably require to determine that each of the
        Approved Traville Construction Budget and the Approved Manufacturing
        Construction Budget is In Balance.

                (iii)   Construction Agent shall make available to
        Administrative Agent and Construction Consultant for inspection and
        copying (i) on each anniversary of the Documentation Date (unless an
        Event of Default has occurred and is continuing in which case as
        requested) a copy of each of the then current Traville Plans and
        Specifications and the then current Manufacturing Plans and
        Specifications, (ii) within 30 days after Substantial Completion of the
        Traville Facility, a copy of the then current Traville Plans and
        Specifications, and (iii) within 30 days after Substantial Completion of
        the Manufacturing Facility, a copy of the then current Manufacturing
        Plans and Specifications.

        (c)     Casualty Notices. Lessee shall deliver to Lessor, the Lessor
Hedging Agreement Counterparties and each Agent promptly upon the occurrence of
a Casualty that may result in a

                                       31
<PAGE>

                                                         PARTICIPATION AGREEMENT

claim in excess of $1,000,000 an Officer's Certificate describing in detail
those Improvements that have suffered a Casualty (except to the extent such
Casualty has been described in a previously delivered Officer's Certificate) or
been the subject of a Condemnation and cannot be repaired by the then current
end of the Lease Term or have not been replaced in accordance with the Lease.

        (d)     Notice of Certain Defaults. Promptly upon obtaining actual
knowledge thereof, Lessee shall notify Lessor, the Agents and the Lessor Hedging
Agreement Counterparties in writing of the existence of a Lease Default, Lease
Event of Default, Construction Agency Default or Construction Agency Event of
Default which notice shall describe the nature of such Lease Default, Lease
Event of Default, Construction Agency Default or Construction Agency Event of
Default, as applicable.

        (e)     Notice of Proceedings. Promptly upon Lessee's becoming aware of
(i) any investigation of it by any Authority, (ii) any court or administrative
proceeding involving it, or (iii) any notice, claim or demand from any Authority
which alleges that any such Person is in violation of any law or has failed to
comply with any order issued pursuant to any Federal, state or local statute
regulating its operation and business, which individually or in the aggregate is
reasonably likely to result in a liability of $10,000,000 or more or to have a
Material Adverse Effect, it shall notify Lessor and the Agents specifying its
nature and the action it is taking with respect thereto.

        (f)     Notice of Substantial Completion. Promptly upon occurrence of
Substantial Completion of a Property, Lessee shall deliver written notice
thereof to Lessor and each Agent, together with true and correct copies of
certificates of occupancy issued with respect to such Property. The failure to
deliver a notice of Substantial Completion will not prevent the Property from
becoming subject to the Lease in accordance with Section 4.5.

        (g)     Inspection. Lessor or any Agent may designate any Person in
writing who is its officer, employee or agent to visit and inspect the
Properties, and to the extent reasonable under the circumstances, examine
Lessee's books of record and accounts pertaining to the Properties all at such
reasonable times as Lessor or such Agent, as the case may be, may reasonably
request and, upon such request, Lessee shall make such properties and such books
of record and accounts pertaining to the Properties available to Lessor or such
Agent, as the case may be, for inspection; provided, that Lessor and such Agent
shall comply, and cause their respective officers, employees and agents to
comply, with the provisions of Section 6.7; and provided, further, that so long
as no Lease Event of Default or Construction Agency Event of Default has
occurred and is continuing, no more than one such inspection shall occur per
each calendar month. Notwithstanding the foregoing provisions of this Section
6.1(g), (i) except in the case of emergency or Lease Event of Default or
Construction Agency Event of Default, such visits and inspections Lessor or such
Agent shall provide reasonable written notice to Lessee prior to any such visit
or inspection and, absent a Lease Event of Default, shall occur not more often
than once per annum, (ii) any such visit and inspection shall be at the sole
risk and expense of the Person so visiting or inspecting (but without excusing
Lessee for any liability for any injuries to the extent resulting from Lessee's
negligence or willful misconduct where such Person has complied with clause
(iii) hereof) unless a Lease Event of Default or Construction Agency Event of
Default has occurred and is continuing, in which case any such visit and
inspection shall be at

                                       32
<PAGE>

                                                         PARTICIPATION AGREEMENT

the expense of Lessee (provided that during the Construction Period Lessee shall
request an Advance, the proceeds of which shall be used to pay such expenses),
(iii) each Person so visiting or inspecting the Properties shall comply with
such rules and regulations regarding safety and security as Lessee may
reasonably impose, and (iv) no such Person shall be entitled to inspect any
areas of the Properties or records that Lessee reasonably characterizes as
confidential, proprietary or similarly necessary of protection from disclosure.

        (h)     Liens. Except as otherwise permitted under the Operative
Documents with respect to Permitted Contests, Lessee shall not incur or suffer
to exist any Liens on either Property or any other Collateral other than
Permitted Liens. Further, during the Construction Period, Lessee shall not be
required to remove Liens for so long as such Lien is subject to a Permitted
Contest.

        (i)     Environmental Matters. Subject to Lessee's rights in respect of
Permitted Contests, Lessee shall use and operate the Properties in compliance
with all Environmental Laws, except to the extent that failure to comply could
not reasonably be expected to have a Material Adverse Effect. Lessee shall, as
soon as possible and in any event within ten days after the occurrence of any
violation of an Environmental Law that could reasonably be expected to have a
Material Adverse Effect, provide Lessor and each Agent with a statement of an
authorized officer setting forth the details of such violation and the action
which Lessee proposes to take with respect thereto.

        (j)     Securities. Lessee shall not, nor shall it permit anyone
authorized to act on its behalf to, take any action which would subject the
issuance or sale of any interest in the Lease, the Investor Certificates, the
Investor Contributions, the Facility Notes or any security or lease the offering
of which, for purposes of the Securities Act or any state securities laws, would
be deemed to be part of the same offering as the offering of the aforementioned
items, to the registration requirements of Section 5 of the Securities Act or
any state securities laws.

        (k)     No Disposition of the Properties. Lessee shall not, nor shall it
permit anyone authorized to act on its behalf to, sell, contract to sell,
assign, lease, transfer, convey or otherwise dispose of either Property or any
part thereof in violation of the Operative Documents.

        (l)     Payment of Taxes, etc. Subject to Lessee's rights to conduct a
Permitted Contest in respect of the following, Lessee shall pay (provided that
during the Construction Period Lessee shall request an Advance, the proceeds of
which shall be used to pay) and discharge before the same shall become
delinquent, (i) all taxes, assessments and governmental charges or levies
imposed upon it or upon its property, and (ii) all lawful claims that, if
unpaid, might by law become a Lien upon its property, other than Permitted
Liens.

        (m)     Maintenance of Insurance. During the Construction Period,
Construction Agent shall maintain, at the expense of Lessor, insurance coverage
covering the Properties which meets in all respects the requirements of Section
2.7(f) of the Construction Agency Agreement.

        (n)     Environmental Audit. During the continuance of any Lease Event
of Default, Lessee shall deliver to the Investors and the Agents an
Environmental Audit for each Property within twenty days of demand therefor.

                                       33
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (o)     Appraisal. Upon demand from any Investor or any Agent during the
continuance of a Lease Event of Default, Lessee shall deliver to the Investors
and the Agents an Appraisal of each Property, prepared by an appraiser
satisfactory to the Investors and the Agents and in form and substance
reasonably satisfactory to each of them, showing the Fair Market Value of the
fee interest in the Land and Lessor's interest in the Improvements, dated within
thirty days of the delivery of such Appraisal.

        (p)     Location of Improvements. Lessee will cause each Property to be
constructed in its entirety at and on the related Site, and will not approve or
allow the construction of any Property or any portion thereof to be constructed
at or on any location other than the related Site.

        (q)     Property Costs. Lessee shall not incur, and shall not cause nor
permit any Lessee Person to incur, any Property Costs that, when added to the
aggregate Property Costs then incurred to date, would exceed the Aggregate
Commitments.

        (r)     Lessee's Interest. Lessee shall not assign or transfer its
interest in the Lease or any other Operative Document except in accordance with
Section 16.1 of the Lease.

        (s)     Maintenance of Required Liquid Collateral Amount. Lessee
covenants that each Collateral Agent has and shall continue to have a first
priority perfected security interest in its related Account and the Liquid
Collateral credited thereto, which Account and Liquid Collateral secures all of
the Lessee Obligations. At any time Lessee is required under one or both Liquid
Collateral Agreements to provide additional Liquid Collateral to a Collateral
Agent, Lessee shall pledge such Liquid Collateral to such Collateral Agent
pursuant to the related Liquid Collateral Agreement or such other agreements in
form and substance satisfactory to such Collateral Agent providing for a valid
and perfected first priority security interests in favor of Lessor and such
Collateral Agent in such Liquid Collateral, free and clear of all Liens. Any
Liquid Collateral that shall not be in the form of a direct obligation to such
Collateral Agent shall be pledged to such Collateral Agent pursuant to a pledge
and security agreement and a custody agreement, each in form and substance
satisfactory to such Collateral Agent, to secure the Lessee Obligations. Lessee
shall maintain such pledged Liquid Collateral free and clear of all Liens other
than Liens in favor of Lessor and such Collateral Agent. Any income received (or
loss incurred) by such Collateral Agent with respect to the balance from time to
time on deposit in such Account, including any interest or capital gains on
Permitted Investments made with amounts on deposit in such Account, shall
remain, or be deposited, in (or be deducted from) such Account, and such
Collateral Agent shall not be required to reimburse any such losses or otherwise
have any liability therefor except as otherwise provided in the applicable
Account Agreement. All right, title and interest in and to the cash amounts on
deposit in the Account together with any Permitted Investments from time to time
made pursuant to this Section shall constitute part of the Liquid Collateral and
shall be held for the benefit of Lessor and the Participants, as the case may
be, and shall not constitute payment of the Lessee Obligations (or any other
obligations to which such funds are provided hereunder to be applied) until
applied thereto as provided herein. Each Collateral Agent has the right to
mark-to-market the Liquid Collateral in its related Account and to require
Lessee to transfer additional Liquid Collateral to an Account pursuant to the
applicable Liquid Collateral Agreement.

                                       34
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (t)     Final Completion Work. Lessee shall complete all Final
Completion Work in a good and workmenlike manner in accordance with the
Construction Materials, but in no event later than the last day of the Lease
Term.

        (u)     Financial Reports. Lessee shall furnish to Lessor and each
Agent:

                (i)     so long as Lessee is subject to the reporting
        requirements under Section 13 or 15(d) of the Securities Exchange Act of
        1934, (A) within a reasonable amount of time (but not more than 30 days)
        after the Lessee is required to file the same with the SEC or any
        successor thereto copies of its Annual Report on Form 10-K, and (B)
        within 30 days after Lessee is required to file the same with the SEC,
        copies of its quarterly reports on Form 10-Q and any reports filed on
        Form 8-K, if any;

                (ii)    at any time when Lessee is not subject to such reporting
        requirements, (A) as soon as available and in any event within 45 days
        after each fiscal quarter, the unaudited consolidated statements of
        consolidated earnings, stockholders' equity and cash flows of Lessee and
        its consolidated subsidiaries for such fiscal quarter and the related
        consolidated balance sheet of Lessee and its consolidated subsidiaries
        as at the end of such fiscal quarter, setting forth in each case in
        comparative form the corresponding figures for the corresponding periods
        in the preceding fiscal year (except that, in the case of such balance
        sheet, such comparison shall be to the last day of the prior fiscal
        year), accompanied by a certificate of a senior financial officer of
        Lessee, which certificate shall state that said financial statements
        fairly present, in all material respects, the consolidated financial
        condition and results of operations of Lessee in accordance with
        generally accepted accounting principles, consistently applied, as at
        the end of, and for, the relevant period (subject to normal year-end
        audit adjustments) and (B) as soon as available and in any event within
        90 days after each fiscal year, the audited statements of consolidated
        earnings, stockholders' equity and cash flows of Lessee and its
        consolidated subsidiaries for such fiscal year and the related
        consolidated balance sheet of Lessee and its consolidated subsidiaries
        as at the end of such fiscal year, setting forth in each case in
        comparative form the corresponding figures for the preceding fiscal
        year, accompanied by an opinion on such financial statements of
        independent certified public accountants of recognized national
        standing, which opinion shall state that said financial statements
        fairly present, in all material respects, the consolidated financial
        condition and results of operations of Lessee and its consolidated
        subsidiaries as at the end of, and for, such fiscal year in accordance
        with generally accepted accounting principles, consistently applied, as
        at the end of, and for, such fiscal year;

                (iii)   together with each delivery of financial statements
        pursuant to clauses (i) and (ii) above, an Officer's Certificate,
        together with a duly executed Compliance Certificate, stating that the
        signer has made such inquiries as the signer deems necessary and
        appropriate in the circumstances and that such review has not disclosed
        the existence during the accounting period covered by such financial
        statements, and that the signer does not have actual knowledge of the
        existence as of the date of such certificate, of any condition or event
        which constitutes a Lease Event of Default or a Construction Agency
        Event of Default or which, after notice or lapse of time or both, would
        constitute a Lease Event of Default or a Construction Agency Event of
        Default or, if any such condition or

                                       35
<PAGE>

                                                         PARTICIPATION AGREEMENT

        event existed or exists, specifying the nature and period of the
        existence thereof and what action Lessee has taken or is taking or
        proposes to take with respect thereto and including a computation of the
        financial tests set forth in Section 6.1(v) and (w);

                (iv)    such additional financial information, reports or
        statements as any Participant or any Agent may from time to time
        reasonably request.

        Information required to be delivered pursuant to clause (i) of this
Section 6.1(u), if not previously delivered through paper copies, shall be
deemed to have been delivered on the date on which Lessee provides notice to the
Participants and the Agents that such information has been posted on Lessee's
website on the Internet, at sec.gov/edaux/searches.htm or at another website
identified in such notice and accessible by the Participants without a charge;
provided that (x) such notice may be included in any certificate delivered
pursuant to clause (iii) hereof and (y) HGSI shall deliver paper copies of the
information referred to in clause (i) of this Section 6.1(u) upon request of any
Participant or Agent.

        (v)     Minimum Unrestricted Cash and Marketable Securities. HGSI will
not permit its Unrestricted Cash, Cash Equivalents and Marketable Securities to
be less than the greater of (a) $100,000,000 as at the end of any Fiscal Quarter
and (b) the Cash Burn Amount for the period of four consecutive Fiscal Quarters
as at the end of any Fiscal Quarter.

        (w)     "Senior Debt Ratio". HGSI will not permit the Senior Debt Ratio
as of the end of any Fiscal Quarter to be less than 1.25:1.

        (x)     No Sale of Ground Lessor. Lessee will not sell, transfer, or
otherwise dispose of Ground Lessor, other than to a wholly-owned subsidiary of
HGSI.

        (y)     Properly Margined Collateral Coverage.

                (i)     If (A) as of any Cash Collateral Test Date the
        Unrestricted Cash, Cash Equivalents and Marketable Securities of HGSI
        and its Subsidiaries on a consolidated basis as of such date is less
        than the greater of (i) $200,000,000 and (ii) the Cash Burn Amount for
        the period of four consecutive Fiscal Quarters ended on or most recently
        prior to such Collateral Cash Collateral Test Date, (B) all or
        substantially all of the assets of HGSI or control of its outstanding
        shares of capital stock is acquired by a Non-Public Company, HGSI shall
        no later than five Business Days after such Cash Collateral Test Date,
        maintain its Liquid Collateral on the basis of the Properly Margined
        Collateral Coverage and deliver to each Collateral Agent additional
        Permitted Investments so that the Adjusted Market Value of the Liquid
        Collateral held in each Account of each Collateral Agent is not less
        than the applicable Required Liquid Collateral Amount with respect to
        such Account and the Concentration Limits are met.

                (ii)    From and after any date on which the Unrestricted Cash,
        Cash Equivalents and Marketable Securities of HGSI shall be equal to or
        less than $300,000,000, HGSI shall deliver to Lessor and each Agent on
        the last Business Day of each calendar month an Officer's Certificate
        stating the amount of HGSI's Unrestricted Cash and Marketable Securities
        as of such date.

                                       36
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (z)     Business Activities. HGSI will not, and will not permit any
Subsidiary to, engage in any business activity, except the businesses of
discovery, development, manufacture or sale of biotechnology or pharmaceutical
products or services and any businesses reasonably ancillary, incidental,
comparable or related thereto.

        (aa)    Amount of Advances. HGSI shall not allow the aggregate amount of
Advances received by Construction Agent or Lessee, together with all interest,
Yield, fees and Transaction Costs incurred or accruing with respect thereto
(either prior to Substantial Completion of both Properties or, if a Lease Event
of Default or a Construction Agency Event of Default has occurred and is
continuing, incurred or accruing at any time, whether before or after the
Outside Completion Date), to at any time exceed the Aggregate Commitments.

        (bb)    Traville Facility Requirements. During the Construction Period
with respect to the Traville Facility, Construction Agent shall comply with the
conditions set forth in the opinion delivered in the Documentation Closing Date
pursuant to Section 4.1(e)(iii).

        (cc)    General Contractor. The General Contractor for the Construction
of each Property shall be the Gilbane Building Company, Inc. or any contractor
acceptable to the Construction Consultant and the Administrative Agent

        (dd)    Upon Substantial Completion of the Traville Facility, HGSI shall
deliver to the Lessor, the Investors, Conduit, the Agents and each Liquidity
Provider a Certification by an independent architect in form and substance
satisfactory to each addressee to the effect that the conditions set forth
6.1(bb) have been met.

        SECTION 6.2. Covenants of the Trust, Trustee and Trust Company

        (a)     Cooperation with Lessee. Lessor shall, to the extent reasonably
requested by Lessee (but without assuming additional liability on account
thereof), at Lessee's expense (provided that during the Construction Period
Lessee shall request an Advance, the proceeds of which shall be used to pay such
expense), cooperate to allow Lessee to (i) perform its covenants contained in
Section 6.1, including at any time and from time to time, upon the reasonable
request of Lessee, promptly and duly to execute and deliver any and all such
further instruments, documents and financing statements (and continuation
statements related thereto) as Lessee may reasonably request and as shall be
presented to it in final execution form in order to perform such covenants and
(ii) further Lessee's interest as lessee, including the filing of any statement
with respect to any tax abatements, Permitted Contests or other requirements.

        (b)     Discharge of Liens. Lessor will not create or permit to exist at
any time, and will, at its own cost and expense, promptly take such action as
may be necessary duly to discharge, or to cause to be discharged, all Lessor
Liens attributable to it, and will cause restitution to be made to the
Collateral in the amount of any diminution of the value thereof as a result of
its failure to comply with its obligations under this Section 6.2(b).
Notwithstanding the foregoing, Lessor shall not be required to so discharge any
such Lessor Lien while the same is subject to a Permitted Contest.

        (c)     Change of Principal Place of Business. Lessor shall give prompt
notice to each Investor, Lessee and the Agents if Lessor's principal place of
business or chief executive office,

                                       37
<PAGE>

                                                         PARTICIPATION AGREEMENT

or the office where the records concerning the Properties or the transactions
contemplated by the Operative Documents are kept, ceases to be Salt Lake City,
Utah, or if it changes its name, identity or structure.

        (d)     Restrictions on and Effect of Transfer. Lessor shall not sell,
assign, transfer or otherwise dispose of, or mortgage, pledge or otherwise
encumber, all or any portion of its right, title or interest in, to or under any
of the Operative Documents other than in accordance with the provisions of the
Operative Documents.

        (e)     No Plan Assets. Lessor shall not cause or permit any of its
property or other assets to constitute "plan assets" within the meaning of
United States Department of Labor Regulation Section 2510.3-101 of any "employee
benefit plan" (as defined in Section 3(3) of ERISA) which is subject to Title I
of ERISA, or any "plan" (as defined in Section 4975(e)(1) of the Code).

        (f)     Acquisition of Assets. Without the consent of the Liquidity
Providers and Conduit, Lessor will not acquire, by long-term or operating lease
or otherwise, any property or other assets except pursuant to the terms of the
Operative Documents.

        (g)     Investments. Without the consent of the Liquidity Providers and
Conduit, Lessor will not make, incur, or suffer to exist any loan, advance,
extension of credit or other investment in any Person other than pursuant to the
Operative Documents.

        (h)     Securities. Lessor shall not, nor shall it permit anyone
authorized to act on its behalf to, take any action which would subject the
issuance or sale of any interest in the Lease, the Investor Certificates, the
Investor Contributions, the Facility Notes or any security or lease the offering
of which, for purposes of the Securities Act or any state securities laws, would
be deemed to be part of the same offering as the offering of the aforementioned
items, to the registration requirements of Section 5 of the Securities Act or
any state securities laws.

        (i)     Other Activities. Neither the Trust nor Trustee (in each case,
in its capacity as such) shall conduct, transact or otherwise engage in, or
commit to transact, conduct or otherwise engage in, any business or operations
other than the entry into, and exercise of rights and performance of obligations
in respect of, the Operative Documents and other activities incidental or
related to the foregoing.

        (j)     Ownership of Properties; Indebtedness. Neither the Trust nor
Trustee (in each case, in its capacity as such) shall conduct, transact or
otherwise engage in, or otherwise operate any properties or assets other than in
connection with the activities described in clause (i) above, or incur, create,
assume or suffer to exist any indebtedness or other consensual liabilities or
financial obligations other than as may be incurred, created or assumed or as
may exist in connection with the activities described in clause (i) above
(including, in the case of the Trust, obligations incurred by the Trust
hereunder, and including, in the case of Trustee, obligations under the Investor
Certificates and other obligations incurred by Trustee hereunder).

        (k)     Disposition of Assets. Neither the Trust nor Trustee (in each
case, in its capacity as such) shall convey, sell, lease, assign, transfer or
otherwise dispose of any of its property, business or assets, whether now owned
or hereafter acquired, except to the extent expressly

                                       38
<PAGE>

                                                         PARTICIPATION AGREEMENT

contemplated by the Operative Documents or as otherwise directed in writing
pursuant to the Operative Documents.

        (l)     Compliance with Operative Documents. Each of the Trust, Trustee
and Trust Company shall at all times observe and perform all of the covenants,
conditions and obligations required to be performed by it (whether in its
capacity as the Trust or Trustee, as the case may be, or in its individual
capacity or otherwise) under each Operative Document to which it is a party.

        (m)     Trust Agreement. Without prejudice to any right under the Trust
Agreement of Trustee to resign, each of Trustee and Trust Company (a) agrees not
to terminate or revoke the trust created by the Trust Agreement, (b) agrees not
to amend, supplement, terminate, revoke or otherwise modify any provision of the
Trust Agreement in any manner which could reasonably be expected to have an
adverse effect on the rights or interests of the Lenders, any Lessor Hedge
Counterparty or Lessee hereunder or under the other Operative Documents and (c)
agrees to comply with all of the terms of the Trust Agreement.

        SECTION 6.3. Covenants of the Investors. Except as otherwise set forth
below, each of the Investors covenants with each of the other parties hereto as
follows:

        (a)     No Amendment. Without the consent of Conduit, each Agent and
Lessee, such Investor shall not amend, supplement, terminate or revoke or
otherwise modify any Operative Document to which it is a party or any provision
of the Trust Agreement before the Lease Term Expiration Date or consent to any
of the foregoing.

        (b)     No Violation. Such Investor will not direct Lessor to take any
action in violation of, or that would cause Lessor to violate, the Operative
Documents.

        SECTION 6.4. No Proceedings. (a) Lessee, each Investor, Conduit, each
Agent, and each Liquidity Provider each hereby covenants and agrees, prior to
the date which is one year and one day after the payment in full of the latest
maturing Commercial Paper Note, the Facility Loans, the Conduit Loans, the
amounts due each Investor and all other obligations of Lessee under any
Operative Document to which Lessee is a party, it will not institute against, or
join or assist any other Person in instituting against, Lessor any bankruptcy,
reorganization, arrangement, insolvency or liquidation proceedings or other
similar proceeding under the laws of the United States or any state of the
United States (each a "Proceeding"); and (b) Lessee, each Investor, each Agent
and each Liquidity Provider each agrees that, prior to the date which is one
year and one day after the payment in full of the latest maturing Commercial
Paper Notes of Conduit, it will not institute against, or join or assist any
other Person in instituting against, Conduit, any Proceeding; (any such Person
instituting or joining any such action described in clause (a) or (b), the
"Instituting Party", and any such Person against whom any such proceeding is
instituted, the "Petitioned Party"). In the event that any party hereto takes
action in violation of this Section 6.4, the Petitioned Party hereby agrees it
shall file an answer with the bankruptcy court or otherwise properly contest the
filing of such a petition by the applicable Instituting Party against such
Petitioned Party or the commencement of such action and raise the defense that
the Instituting Party has agreed in writing not to take such action and should
be estopped and precluded therefrom and such other defenses, if any, as its
counsel advises that it may assert.

                                       39
<PAGE>

                                                         PARTICIPATION AGREEMENT

The provisions of this Section 6.4 shall survive the termination of this
Participation Agreement and the other Operative Documents.

        SECTION 6.5. Quiet Enjoyment. In the absence of an Event of Default,
neither Lessor, Conduit, the Agents nor any other Participant shall take, or
permit any Person claiming by, through or under it to take, any affirmative
action to interfere with the rights of Lessee to full enjoyment of the
Properties during the Lease Term in accordance with the Lease. The sole remedy
of Lessee for breach of this Section 6.5 shall be to sue for damages for the
breach hereof, and/or sue for a declaratory judgment, injunctive relief or other
specific performance hereof, and such breach shall not affect the obligations of
Lessee to pay all amounts (including Rent) due under the Lease, this
Participation Agreement and the other Operative Documents, or the rights of
Lessor, Conduit, the Agents and the other Participants to initiate legal action
and otherwise enforce the obligations of Lessee under the Lease, this
Participation Agreement and the other Operative Documents. The parties recognize
that any sale, assignment, transfer or other disposition, or mortgage, pledge or
other encumbrance (each a "disposition"), of any part of the Properties or any
of Lessor's rights under the Operative Documents is subject to Lessee's rights,
if any, under the Operative Documents, except any disposition required or
permitted by the Operative Documents following the occurrence and during the
continuation of any Lease Event of Default.

        SECTION 6.6. Discharge of Lessor Liens. Each of the Participants and
each Agent hereby severally agrees that it will not create or permit to exist at
any time, and will, at its own cost and expense, promptly take such action as
may be necessary duly to discharge, or to cause to be discharged, all Lessor
Liens on the Properties (or on any interest in or proceeds from any of the
Operative Documents) attributable to it. Notwithstanding the foregoing, neither
any Agent nor any Participant shall be required to so discharge any such Lessor
Lien while the same is subject to a Permitted Contest.

        SECTION 6.7. Confidentiality. Lessor, each Participant and each Agent
shall treat (x) all non-public information which has been identified in writing
as such by Lessee and has been obtained pursuant to the transactions
contemplated by this Participation Agreement or any other Operative Document and
(y) HGSI's and its Affiliates' participation in any of the transactions, and the
terms thereof, contemplated hereby and thereby, as confidential and shall make
no disclosure of any such information, except to any of their examiners,
Affiliates, outside auditors, counsel, rating agencies and other professional
advisors (which parties shall include the Agents) in connection with this
Participation Agreement or the other Operative Documents, or to any court or
other tribunal in connection with any dispute arising out of the Operative
Documents, or as reasonably required by any potential transferee, participant or
assignee permitted hereunder or as required or requested by any governmental
agency or representative thereof or pursuant to legal process; provided,
however, that

        (a)     unless specifically prohibited by Applicable Laws or court
order, Lessor, each Participant and Agent shall notify Lessee of any request by
any governmental agency or representative thereof (other than any such request
in connection with an examination of the financial condition of such Person by
such governmental agency) for disclosure of any such non-public information
prior to disclosure of such information;

                                       40
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (b)     prior to any such disclosure pursuant to this Section 6.7, the
subject party shall require any such potential transferee, participant and
assignee receiving a disclosure of non-public information to agree in writing

                (i)     to be bound by this Section 6.7; and

                (ii)    to require such Person to require any other Person to
        whom such Person discloses such non-public information to be similarly
        bound by this Section 6.7; and

        (c)     except as may be required by an order of a court of competent
jurisdiction and to the extent set forth therein, neither Lessor nor any
Participant shall be obligated or required to return any materials furnished by
Lessee or any of its subsidiaries or Affiliates.

        SECTION 6.8. Performance of Operative Documents. Each party hereto
hereby agrees to observe and perform in all material respects all of the
covenants, conditions and obligations required to be observed or performed by it
in each Operative Document to which it is a party.

        SECTION 6.9. Easements. Construction Agent may, subject to the
conditions, restrictions and limitations set forth herein and in the other
Operative Documents, at any time prior to the earlier of (i) the Lease Term
Commencement Date in respect of a Property, whereupon the Lease shall control
with respect to such Property, and (ii) termination of the Construction Agency
Agreement, grant easements, licenses, rights-of-way, party wall rights and other
rights in the nature of easements, with or without consideration, necessary or
appropriate in the reasonable opinion of Construction Agent for the construction
or operation of the Properties, without the consent of Lessor, any Participant
or any Agent, as long as the following conditions are satisfied unless waived
pursuant to Section 12.5 and, as long as the following conditions are satisfied
or so waived, Construction Agent may execute such instruments and take such
actions in the name of Lessor, any Participant or any Agent, and Lessor shall
execute a separate power of attorney evidencing such right from time to time
upon the request of Construction Agent:

        (a)     no Event of Default shall have occurred and be continuing;

        (b)     there shall be sufficient sums in the applicable Construction
Budget to pay all costs and expenses in connection therewith including any
reasonable out-of-pocket costs of Lessor and Administrative Agent in connection
therewith, it being agreed that to the extent there shall be insufficient funds
in the applicable Construction Budget to pay all costs and expenses in
connection with such matter, then Construction Agent shall not proceed or
continue nor incur any Improvement Costs, as the case may be, with respect to
such matter until after the Lease Term Commencement Date;

        (c)     Construction Agent shall have delivered to Administrative Agent
a certificate of a Responsible Officer of Construction Agent stating that:

                (i)     such action will not diminish the Fair Market Value,
        useful life or residual value of the Properties in any material respect
        and that there are sufficient sums in the applicable Construction Budget
        to pay all costs and expenses with respect to such action;

                                       41
<PAGE>

                                                         PARTICIPATION AGREEMENT

                (ii)    such action will not cause the Land or the Improvement
        or any portion thereof to fail to comply in any material respect with
        the provisions of this Participation Agreement, any other Operative
        Document or Applicable Laws;

                (iii)   the Construction Agency Agreement and Construction
        Agent's obligations thereunder shall continue in full force and effect,
        without abatement, suspension, deferment, diminution, reduction,
        counterclaim, setoff, defense or deduction; and

                (iv)    such action will not impose or create any liability or
        obligation on Lessor except as otherwise expressly permitted herein or
        in any of the Operative Documents unless Lessee shall indemnify Lessor
        therefor or shall have already indemnified Lessor therefor pursuant to
        this Participation Agreement, the Construction Agency Agreement or any
        other Operative Document and confirmed (with respect specifically to
        such action) such indemnification obligation.

        At the request of Construction Agent, so long as no Construction Agency
Event of Default shall have occurred and be continuing, Lessor, each Agent and
each Participant, as applicable, shall, from time to time during the
Construction Period and upon at least ten (10) Business Days' prior written
notice from Construction Agent, consent to and join in any easements, licenses,
rights-of-way, party wall rights and other rights in the nature of easements
pursuant to this Section 6.9; provided, that each of the conditions set forth in
clauses (a) through (c) of this Section 6.9 are satisfied or waived by the
Collateral Agent pursuant to the first paragraph of this Section 6.9.

        At the request of Lessee, so long as no Bankruptcy Default or Lease
Event of Default shall have occurred and be continuing, Lessor shall, from time
to time during the Lease Term and upon at least ten (10) Business Days' prior
written notice from Lessee, consent to and join in any easements, licenses,
rights-of-way, party wall rights and other rights in the nature of easements
pursuant to Section 8.4 of the Lease; provided, that each of the conditions set
forth in Section 8.4 of the Lease are satisfied or waived by the Collateral
Agent (at the written direction of the Directing Party).

        SECTION 6.10. Certain Notices. Construction Agent covenants with each of
the other parties hereto that it shall deliver to the Administrator all notices
required to be delivered by it to Administrative Agent or Lessor under the
Construction Agency Agreement.

        SECTION 6.11. Refinancing. Lessee shall have the right, by notice to the
Agents and the Participants at least 30 days prior to the date specified in such
notice for the refinancing, to request a refinancing or refinancings of all, but
not less than all, of the A Loans, whereupon BancBoston Leasing Investments Inc.
shall proceed in good faith to arrange a refinancing of the A Loans on a basis
acceptable to Lessee. Lessee shall not have the right to cause any such
refinancing (i) if a Default or Event of Default shall have occurred and be
continuing, or (ii) more than twice during the Lease Term. None of the Agents or
the Participants shall be obligated to effect any such refinancing unless (A)
such refinancing would not have an adverse effect on the interest of any
Investor or the holder of any B Loan in the Overall Transaction, (B) the
interest rates and program fees applicable to the B Loans and related
commitments shall have been reset at levels satisfactory to the Lenders in their
sole respective discretion, (C) all out-of-

                                       42
<PAGE>

                                                         PARTICIPATION AGREEMENT

pocket expenses (including reasonable legal fees and expenses and any taxes or
duties) incurred by any Agent or Participant in connection with such refinancing
(whether or not consummated) will be borne by Lessee, (D) the documentation of
such refinancing (including opinions of counsel and other ancillary documents)
shall be reasonably satisfactory to the Agents and the Participants, (E) all
authorizations, approvals and consents which are necessary for such refinancing
shall have been obtained, (F) all amounts due and owing in respect of the A
Loans under the Operative Documents shall have been paid in full.

        SECTION 6.12. Lessor Hedging Agreements.

        (a)     At any time after the Documentation Date, if HGSI has arranged
for one or more interest rate swaps in an aggregate notional principal amount of
up to the then outstanding Lease Balance in form and substance satisfactory to
Administrative Agent and the Collateral Agents and substantially in the form of
the ISDA Form (Multicurrency - Cross-Border) (the "Lessor Hedging Agreements")
to be entered into by one or more Lessor Hedging Agreement Counterparty, then
upon the written request from HGSI, Lessor shall enter into such Lessor Hedging
Agreements with a Lessor Hedging Agreement Counterparty; provided that, (i) at
the time the Lessor Hedging Agreements are entered into, each of the Lessor
Hedging Agreement Counterparties shall be either Fleet National Bank or First
Union National Bank, or either or their respective Affiliates, (ii) each of the
Lessor Hedging Agreement Counterparties shall have executed acknowledgments to
the Operative Documents and shall agree to be bound by the distribution
provisions of Article X, (iii) all Lessor Hedging Agreements shall incorporate
mutatis mutandis the provisions of Section 12.24.

        (b)     During the Construction Period, Lessee shall include in each
Advance Request an Advance to fund all net amounts then owed by Lessor to each
Lessor Hedging Agreement Counterparty under the Lessor Hedging Agreements and on
each Scheduled Payment Date, Administrative Agent shall pay to the Lessor
Hedging Agreement Counterparties, solely to the extent of the Advance for such
items, from the proceeds of the applicable Advance, all such net amounts then
owed by Lessor to each Lessor Hedging Agreement Counterparty.

        (c)     After the expiration of the Construction Period, Lessee shall
pay to Administrative Agent as Supplemental Rent on each Scheduled Payment Date
all amounts then owed by Lessor to the Lessor Hedging Agreement Counterparties
under the Lessor Hedging Agreements, and such payment shall be distributed by
Administrative Agent solely in accordance with Article X.

        (d)     Lessor and each Lessor Hedging Agreement Counterparty agree that
in the event Administrative Agent shall not, at any time, have received from
Lessee all amounts then due and owed to such Lessor Hedging Agreement
Counterparty under any Lessor Hedging Agreement (i) such Lessor Hedging
Agreement Counterparty shall not have the right to sue Lessor for such unpaid
amount, (ii) Lessor shall assign to such Lessor Hedging Agreement Counterparty
its claim against Lessee with respect to such unpaid amount, and (iii) in the
event that such Lessor Hedging Agreement Counterparty shall successfully receive
any payment with respect to such claim, it shall turn over to Administrative
Agent all such payments for distribution in accordance with Article X.

                                       43
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (e)     In addition, HGSI shall provide to each of the Lessor Hedging
Agreement Counterparties a copy of any notice of its election to exercise any
Purchase Option or the Renewal Option with respect to one or both of the
Properties.

                                  ARTICLE VII

                           PAYMENT OF CERTAIN EXPENSES

        SECTION 7.1. Payment of Transaction Costs and Other Costs. Transaction
Costs shall be paid from Advances in accordance with and subject to Section
4.2(b). In addition, in the event that the transactions contemplated hereby are
consummated, Lessee shall pay or reimburse each of the other parties to this
Participation Agreement other than Lessee and HGSI for all other reasonable
out-of-pocket costs and expenses (including reasonable fees and expenses of
special counsel) incurred in connection with: (a) any casualty, Event of Loss or
termination of this Participation Agreement or any other Operative Document, or
any extension, amendment, modification or waiver of or under this Participation
Agreement or any other Operative Document whether or not such extension,
amendment, modification or waiver is consummated; (b) the negotiation and
documentation of any restructuring or "workout", whether or not consummated, of
any Operative Document; (c) the enforcement of the rights or remedies under the
Operative Documents arising out of (i) any Lease Event of Default or
Construction Agency Event of Default or (ii) any Conduit Loan Event of Default;
(d) further assurances reasonably requested pursuant to Section 12.11 or any
similar provision in other Operative Documents; (e) any transfer by Lessor of
any interest in the Properties (or any portion thereof permitted by the
Operative Documents) in accordance with the Operative Documents; and (f) the
ongoing fees and expenses for which Lessee is obligated under the Operative
Documents. Subject to the provisions of Sections 7.3 and 11.2, all fees and
expenses referenced in this Section 7.1 payable or incurred before or during the
Construction Period shall be paid through Advances.

        SECTION 7.2. Brokers' Fees. Subject to Section 12.2, Lessee shall pay or
cause to be paid (provided that during the Construction Period Lessee shall
request an Advance, the proceeds of which shall be used to pay) any brokers'
fees (including the any fees of any Lessor Hedging Agreement Counterparty),
including any interest and penalties, which are payable in connection with the
transactions contemplated by this Participation Agreement and the other
Operative Documents.

        SECTION 7.3. Limitations During Construction Period. If at any time
there shall be Property Costs (including any costs resulting from a Force
Majeure Event), or other amounts which are required to be paid prior to or
during the Construction Period through Advances under this Article VII or
Sections 6.12, 9.2, 9.7, 9.8 or 9.9 or under any Operative Document, and (i)
such amounts are not included in the applicable Construction Budget (as the same
may be adjusted pursuant to the Construction Agency Agreement) or (ii) there are
not sufficient Available Commitments remaining to complete the construction of
the Improvements pursuant to the Construction Documents (net of all Yield
Payment Advances and Interest Payment Loans), and, in either case, there are no
Other Available Amounts to pay for such amounts, then at such time a
Construction Agency Event of Default shall be deemed to have occurred.

                                       44
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                  ARTICLE VIII

                      TRANSFERS OF PARTICIPANTS' INTERESTS

        SECTION 8.1.1. Transfers by Investors.

        (a)     The Investors may transfer or assign all or any part of its
respective interest in or under this Participation Agreement, the other
Operative Documents or the Certificates without the prior written consent of
Lessee; provided, that, without the prior written consent of Lessee, no Investor
shall transfer any such interest to any Person whose principal business is the
discovery, development, manufacture or sale of biotechnology or pharmaceutical
products or services. On or prior to such transfer, the assignee (if not already
an Investor) shall deliver to Lessee, Lessor, Conduit and Administrative Agent
any certificate in respect of withholding taxes required under Section 9.3.
Administrative Agent shall notify Lessee of any such transfer or assignment
promptly upon the issuance of new Investor Certificates evidencing such transfer
or assignment, if applicable. As a condition to any such transfer, the
transferor and transferee shall deliver to Lessee, Lessor and each Agent an
Assignment and Acceptance, in substantially the form of Exhibit C hereto,
executed by the assignee or transferee.

        (b)     In the event that Lessee shall have exercised the Purchase
Option in accordance with Section 5.1(a) or (d) of the Lease with respect to
both Properties or shall have elected to purchase both Properties pursuant to
Section 5.1.2(ii) of the Construction Agency Agreement, Lessee may elect, upon
delivery of written notice to each Investor, to purchase from the Investors on
the Purchase Date all but not less than all of the outstanding Investor
Certificates for a price equal to the aggregate Investor Amounts then
outstanding plus all Yield and other additional amounts then owing to the
Investors under the Operative Documents (it being understood that any such
purchase price shall be paid directly to the Investors and shall be deducted
from any amounts payable by Lessee under Section 5.1(a) of the Lease in
connection with its exercise of the Purchase Option with respect to both
Properties) In the event that Lessee shall elect to purchase the Investor
Certificates pursuant to this Section 8.1.1(b), then (i) Lessee shall have the
right to designate another Person as the purchaser of the Investor Certificates,
provided, that Lessee may not convey the option to purchase the Investor
Certificates itself and may not delegate its obligations in respect of the
payment of the purchase price therefore, and (ii) each Investor shall convey its
Investor Certificates without any representations or warranties, except
specifically, a representation and warranty that (A) such Investor has authority
to transfer such Investor Certificates and (B) such Investor Certificates are
free and clear of all Liens attributable to such Investor.

        SECTION 8.1.2. Transfers by Conduit. Conduit (a) may transfer or assign
any or all of its rights and obligations under this Participation Agreement, the
Loan Agreement, the Liquidity Agreement or any other Operative Document (i) in
accordance with the Loan Agreement and the Liquidity Agreement to the Liquidity
Providers (or an agent on their behalf) and (ii) to any other multiseller
commercial paper conduit administered by Administrative Agent or an Affiliate
thereof that is rated no less than A-1 by S&P and P-1 by Moody's (provided, that
in connection with any such transfer each related Liquidity Provider shall
commit to provide liquidity fundings in connection with the new conduit in
amounts equal to its Commitment hereunder), and (b) in all other cases, may not
transfer or assign any or all of such rights and obligations without the

                                       45
<PAGE>

                                                         PARTICIPATION AGREEMENT

prior written consent of Lessor and Lessee, which consent shall not be
unreasonably withheld and which consent, in the case of Lessee shall not be
required at any time during which there exists and is continuing a Bankruptcy
Default, a Lease Event of Default or a Construction Agency Event of Default,
and, in any event, subject to an assumption agreement in substantially the form
attached to the Liquidity Agreement.

        SECTION 8.2. Transfers by Liquidity Providers. Each Liquidity Provider
may transfer or assign all or any portion of, or sell any participation in, its
Facility Loans on the terms and conditions applicable to such Liquidity
Provider's transfer and assignment of, or sale of a participation in, its
Commitments (as defined in the Liquidity Agreement) and Percentage Interests
under the Liquidity Agreement, mutatis mutandis, and not otherwise. No Liquidity
Provider may transfer or assign any portion of, or sell any participation in,
any Facility Loan unless it shall also at the same time transfer or assign, or
sell a participation, to the assignee of such Facility Loan a proportionate
interest in such Liquidity Provider's Commitments (as defined in the Liquidity
Agreement) and it's share of Borrowings under the Liquidity Agreement.

        SECTION 8.3. Replacement of Conduit, an Investor or a Liquidity
Provider. If (i) any Investor or any Liquidity Provider defaults in any of its
material obligations pursuant to the Operative Documents, (ii) any Conduit Loan
Event of Default shall occur which does not result from a Lease Event of
Default, (iii) any Participant charges Increased Costs under Section 9.7 or the
provisions of Section 9.8 shall be applicable or (iv) payments to a Participant
shall become subject to withholding taxes, then Lessee shall be permitted to
replace the defaulting party in the case of clause (i) or (ii) above, the
Liquidity Provider charging Increased Costs or the Participant as to which
Section 9.8 shall be applicable in the case of clause (iii) above, or the
Participant to which payments have become subject to withholding taxes in the
case of clause (iv) above; provided, however, that Administrative Agent shall
have the right to direct Lessee to use commercially reasonable efforts to
replace such Participant in any case where clause (iii) or (iv) above may be
applicable; provided further, however, that any replacement of any party
pursuant to this Section 8.3 shall satisfy the following conditions: (A) such
replacement shall not conflict with any Applicable Laws, (B) the replaced party
shall have received all amounts owing to it under the Operative Documents, (C)
Lessee shall be obligated to pay any reasonable fees and expenses arising in
connection therewith (provided, Lessee may exercise and/or shall preserve its
rights and remedies as against a defaulting Investor or Liquidity Provider and
provided further, during the Construction Period, such fees and expenses shall
be funded through Advances), (D) any replacement party shall agree in writing to
assume and be subject to all of the terms and conditions of the Operative
Documents that were applicable to its predecessor-in-interest and this
Participation Agreement, and (E) in the event that Conduit is replaced, unless a
Liquidity Provider affirmatively consents to continue to act in the capacity as
a Liquidity Provider, Lessee must replace each such non-consenting Liquidity
Provider. Each Investor and each Liquidity Provider agree to cooperate with
Lessee in its efforts to arrange replacements as contemplated by this Section
8.3. In addition, Lessee shall have the right to effect a replacement of a
Liquidity Provider in accordance with Sections 3.6 and 3.7 of the Liquidity
Agreement and shall be a third party beneficiary of such provisions and the
other provisions thereof.

        SECTION 8.4. Transfers by HGSI. HGSI shall not assign or transfer any of
its rights or obligations under the Operative Documents to which it is a party,
the Properties, any

                                       46
<PAGE>

                                                         PARTICIPATION AGREEMENT

Improvement or the Overall Transaction, other than in respect of an assignment
or transfer described in Section 12.25 and any purported transfer without the
written consent of all Participants shall be void.

        SECTION 8.5. Renewal of Lease Term Expiration Date and Maturity Dates.

        (a)     Notwithstanding the issuance by either Lessee or Lessor of a
cancellation notice pursuant to Article VI of the Lease, Lessee may request in
writing (a "Renewal Option Request") to the Participants that the Participants
agree that

                (i)     the Lease Term Expiration Date may be renewed for two
        (2) seven (7) year consecutive renewal terms (each such period, a
        "Renewal Term"), in the first instance to follow the term that would
        otherwise expire on the Lease Term Expiration Date, and thereafter, if
        the first Renewal Option is effected, to follow the immediately
        preceding Renewal Term, and

                (ii)    the Maturity Dates shall be correspondingly extended to
        the end of each Renewal Term upon each such exercise by Lessee of its
        option for a Renewal Term.

Each Renewal Option Request must be delivered in writing to each Participant not
later than 235 days prior to the then effective Lease Term Expiration Date. Each
Participant will notify Administrative Agent in writing of whether or not it has
consented to any Renewal Option Request not later than 45 days after receipt of
the related Renewal Option Request (the "Renewal Option Response Date"). Any
Participant who does not so notify Administrative Agent and Lessee by the
Renewal Option Response Date will be deemed to have not consented to such
Renewal Option Request. Any Liquidity Provider, Investor or Conduit that has
notified Administrative Agent and Lessee that it has not consented to an Renewal
Option Request or that is deemed not to have consented, as provided in the
preceding sentence, shall be deemed a "Non-Consenting Participant". Each
Participant's determination with respect to an Renewal Option Request shall be a
new credit determination and within such Participant's sole and absolute
discretion.

        The renewal (each, a "Renewal Option") contemplated by the Renewal
Option Request shall become effective as of the first date (the "Renewal Option
Effective Date" with respect to such Renewal Option) on or after the Renewal
Option Response Date on which all of the Liquidity Providers, Investors and
Conduit (other than Non-Consenting Participants who have been replaced by
Replacement Participants in accordance with Section 8.5(b)) and Replacement
Participants shall have consented to such Renewal Request;

                provided that on both the date of the Renewal Option Request and
        the Renewal Option Effective Date, (x) each of the representations and
        warranties made by Lessee in Article V hereof shall be true and correct
        in all material respects as if made on and as of each such date (except
        as expressly provided otherwise in the Renewal Request), (y) no Event of
        Default shall have occurred and be continuing, and (z) on each of such
        dates Administrative Agent shall have received a certificate of Lessee
        as to the matters set forth in clauses (x) and (y) above insofar as such
        matters pertain to such party; and

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                                                         PARTICIPATION AGREEMENT

                provided further that in no event shall the Renewal Option
        Effective Date occur unless each of the Liquidity Providers, Investors
        and Conduit (other than Non-Consenting Participants who have been
        replaced) and Replacement Participants in accordance with Section 8.5(b)
        shall have consented to the Renewal Option Request on or before the
        Lease Term Expiration Date as in effect before giving effect to the
        renewal requested in such Renewal Option Request.

        (b)     At any time after the Renewal Option Response Date, Lessee shall
be permitted to replace any Non-Consenting Participant with a replacement bank
or other financial institution (a "Replacement Participant"); provided that, in
addition to the requirements set forth in Section 8.4, (i) such Non-Consenting
Participant shall sell (without recourse, other than a representation to the
effect that such Non-Consenting Participant is the owner of its respective
Facility Loan, Percentage Interest, Conduit Loan and Investor Certificate free
and clear of all liens, encumbrances and other interests attributable to it) to
the Replacement Participant all Facility Loans, Percentage Interests, Conduit
Loans and/or Investor Certificates of such Non-Consenting Participant for an
amount equal to, as applicable, (A) the aggregate outstanding principal amount
of such Facility Loans, Percentage Interests or Conduit Loans plus accrued
interest to (but not including) the date of sale, or (B) the aggregate
outstanding Investor Amount related to such Investor Certificates plus accrued
Yield to (but not including) the date of sale, (ii) Lessee shall pay (provided
that during the Construction Period Lessee shall request an Advance, the
proceeds of which shall be used to pay) to such Non-Consenting Participant any
amounts arising under Section 9.9 if any Facility Loan or Conduit Loans owing
to, and/or Percentage Interests or Investor Certificates held by, such
Non-Consenting Participant shall be purchased other than on the last day of the
Interest Period or Interest Periods relating thereto, (iii) such replacement
shall be made in accordance with the provisions of Section 8.3 (provided that
the relevant Replacement Participant or Lessee shall be obligated to pay the
reasonable transaction costs arising in connection therewith (provided further
that during the Construction Period, unless the Replacement Participant elects
to pay such costs, Lessee shall request an Advance, the proceeds of which shall
be used to pay such transaction costs)), (iv) the Replacement Participant shall
have agreed to be subject to all of the terms and conditions of the Operative
Documents (including the extension of the Maturity Date) that were applicable to
its predecessor-in-interest, and (v) such replacement must be consummated no
later than the original Lease Term Expiration Date (in the case of the first
Renewal Option) or the anniversary of the original Lease Term Expiration Date
next following the most recent Renewal Option Response Date (in the case of
subsequent Renewal Options). A Non-Consenting Participant's rights under the
indemnification provisions of the Operative Documents shall survive any sale of
its Facility Loans, Percentage Interests, Conduit Loans and/or Investor
Certificates to a Replacement Participant.

                                   ARTICLE IX

                                 INDEMNIFICATION

        SECTION 9.1. General Indemnification.

        SECTION 9.1.1. General Indemnification. Whether or not any of the
transactions contemplated hereby shall be consummated, Lessee shall pay and
assume liability for, and does

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<PAGE>

                                                         PARTICIPATION AGREEMENT

hereby agree to indemnify, protect, defend, save and keep harmless, on an
After-Tax Basis, each Indemnitee from and against any and all Claims that may be
imposed on, incurred by or asserted against such Indemnitee (whether because of
action or omission by such Indemnitee), whether or not such Claim is covered by
any other indemnification under this Article IX or such Indemnitee shall also be
indemnified as to any such Claim by any other Person, whenever such Claim arises
or accrues, including whether or not such Claim arises or accrues at any time
prior to or after the Maturity Date, in any way arising out of or relating to:

        (a)     any of the Operative Documents or any of the transactions
contemplated thereby, any investigation, litigation or proceeding in connection
therewith, or any amendment, modification or waiver in respect thereof;

        (b)     the Properties, the Land, the Improvements or any part thereof
or interest therein;

        (c)     the purchase, mortgaging, design, construction, preparation,
installation, inspection, delivery, non-delivery, acceptance, rejection,
purchase, ownership, possession, rental, lease, sublease, repossession,
maintenance, repair, alteration, modification, addition or substitution,
storage, transfer of title, redelivery, use, financing, refinancing, operation,
condition, sale (including, without limitation, any sale or other transfer
pursuant to the Lease), return or other disposition of all or any part of any
interest in any Property, the Land or the imposition of any Lien (or incurring
of any liability to refund or pay over any amount as a result of any Lien)
thereon, including, without limitation: (i) Claims or penalties arising from any
violation of law or in tort (strict liability or otherwise), (ii) any Claim
resulting from or related to latent or other defects, whether or not
discoverable, (iii) any Claim resulting from or related to the acquisition of
any Site or Construction thereon, (iv) any Claim based upon a violation or
alleged violation of the terms of any restriction, easement, condition or
covenant or other matter affecting title to any Property, (v) the making of any
Alterations in violation of any standards imposed by any insurance policies
required to be maintained by Lessee pursuant to this Participation Agreement,
the Lease or the Construction Agency Agreement which are in effect at any time
with respect to any Property or any part thereof, (vi) any Claim for patent,
trademark or copyright infringement, (vii) Claims arising from any public
improvements with respect to any Site resulting in any change or special
assessments being levied against such Site or any plans to widen, modify or
realign any street or highway adjacent to such Site, or any Claim for utility
"tap-in" fees, or (viii) claims arising from any agreement, arrangement or
instrument executed to fulfill, or enhance, develop or facilitate the
construction, development or operation of the Properties;

        (d)     the offer, issuance, sale, transfer or delivery of the Investor
Certificates by Lessor;

        (e)     the breach by Lessee, including in its role as a Construction
Agent, of any covenant, representation or warranty made by it or deemed made by
it in any Operative Document or any certificate delivered by it in connection
therewith;

        (f)     any contract or agreement entered into by Construction Agent,
any of its respective designees or Affiliates or, if so requested, Lessor,
pursuant to the terms of the Construction Agency Agreement;

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                                                         PARTICIPATION AGREEMENT

        (g)     the transactions contemplated hereby or by any other Operative
Document, in respect of the application of Parts 4 and 5 of Subtitle B of Title
I of ERISA and any prohibited transaction described in Section 4975(c) of the
Code with respect to a Plan;

        (h)     the retaining or employment of any broker, finder or financial
advisor by any Lessee Person to act on its behalf in connection with this
Participation Agreement;

        (i)     any other agreement entered into or assumed by any Construction
Agency Person in connection with any Property; or any Site or (at the direction
or with the consent of Lessee or Construction Agent) by Lessor; or

        (j)     the ownership of the Land underlying, or the development,
construction or the construction financing of, any Property;

(including, in connection with each of the matters described in this Section 9.1
to which this indemnity shall apply, matters based on or arising from the
negligence of any Indemnitee).

        SECTION 9.1.2. Exceptions to Indemnifications. Notwithstanding the
provisions of Section 9.1.1 or 9.1.3, Lessee shall not be obligated to indemnify
an Indemnitee (nor any of its Affiliates) under Section 9.1.1 or 9.1.3, and
Lessor shall not be required to indemnify a Construction Period Indemnitee under
Section 9.1.3, for any Claim to the extent resulting from or arising out of: (i)
the fraud, gross negligence (it being understood that Lessee shall be required
to indemnify an Indemnitee (subject to the other provisions of this Section
9.1.2 and Section 9.1.3) even if the ordinary (but not gross) negligence of such
Indemnitee, or any Affiliate thereof, caused or contributed to such Claim) or
willful misconduct of such Indemnitee or any of its Affiliates (other than the
fraud, gross negligence or willful misconduct imputed as a matter of law to such
Indemnitee solely by reason of entering into the Operative Documents or the
consummation of the transactions contemplated thereby); (ii) the breach by such
Indemnitee or any of its Affiliates of its respective representations and
warranties in this Participation Agreement or any other Operative Document, or
the breach by such Indemnitee or any of its Affiliates of its covenants as set
forth in this Participation Agreement or in any other Operative Document; (iii)
any Claim resulting from the imposition of any Lessor Lien attributable to such
Indemnitee or its Affiliates; (iv) any Claim for environmental liability, which
liability is addressed in Section 9.5; (v) any Claim to the extent attributable
to acts or events which occur after the expiration of the Lease Term or earlier
termination of the Lease and the return by Lessee of the Properties in
accordance with the terms thereof (except (A) to the extent fairly attributable
to acts, events, liabilities or damages occurring or accruing prior thereto; (B)
Claims arising following the termination or expiration of the Lease Term so long
as Collateral Agent or any Participant continues to exercise remedies against
Lessee in respect of the Operative Documents and (C) Claims arising after the
expiration of the Lease Term so long as Lessor is remarketing the Properties (or
any interest therein) in accordance with Section 7.1 of the Lease); (vi) any
Claim for the recovery of Improvement Costs whether or not such Claim arises
solely as a result of a Construction Agency Event of Default (which for the
avoidance of doubt shall include Construction Breakage Costs and other amounts
payable by Construction Agent as Default Completion Costs) or costs incurred in
remediating a Construction Agency Event of Default prior to the Lease
Commencement Date, other than if such Claim results from the gross negligence or
willful or intentional act or omission of any Construction Agency Person as to

                                       50
<PAGE>

                                                         PARTICIPATION AGREEMENT

which Lessee shall fully indemnify each Indemnitee under Section 9.1.1 (without
the right to obtain an Advance therefor); (vii) any Claim in respect of Taxes
(such claims to be subject to Section 9.2), other than a payment to make
payments under Section 9.1 or 9.1.2 on an after-tax basis as provided in Section
9.4; (viii) with respect to any Indemnitee, any expense expressly provided under
any of the Operative Documents to be paid or borne by such Indemnitee or its
Affiliate; (ix) any Claim to the extent resulting from a voluntary transfer by
any Indemnitee or its Affiliate of all or part of its interest in the Lease, the
other Operative Documents or the Properties, other than while a Lease Event of
Default or a Construction Agency Event of Default has occurred and is continuing
or such transfer is required (pursuant to an act or omission of Lessee or
otherwise) under the Lease or to any Person consented to by Lessee; or (x) any
Claim to the extent resulting from a violation of Applicable Law by such
Indemnitee or its Affiliates (other than (A) a violation of Applicable Law
imputed as a matter of law to such Indemnitee or such Affiliate solely by reason
of entering into the Operative Documents or the consummation of the transactions
contemplated thereby and (B) a violation of Applicable Law resulting from the
failure of Lessee to perform its obligations under the Operative Documents). It
is expressly understood and agreed that the indemnity provided for in Section
9.1.1 or 9.1.3 shall survive the resignation or removal of any Indemnitee, the
expiration or termination of, and shall be separate and independent from any
remedy under, the Lease, the Construction Agency Agreement or any other
Operative Document.

        SECTION 9.1.3. Construction Period Indemnification. Notwithstanding the
foregoing provisions of Section 9.1.1, to the extent any Claim under Section
9.1.1 relates to any act or omission occurring or arising prior to the Lease
Commencement Date, (i) Lessee shall be obligated to indemnify only Lessor and no
other Person pursuant to Section 9.1.1 for such Claim, including any Claim for
which Lessor has an obligation to indemnify any Person pursuant to clause (iii)
below, (ii) Lessee's obligations under Section 9.1.1 during such period shall
exclude Claims resulting solely from a Nonrelated Construction Event, and (iii)
Lessor shall indemnify and keep harmless each Construction Period Indemnitee for
such Claims. Lessor's obligation to indemnify and hold harmless any Construction
Period Indemnitee under this Section 9.1.3:

        (a)     is not an individual or personal obligation of Lessor, but
solely its obligation it its capacity as Lessor, and nothing herein shall be
construed as creating any liability on Lessor, individually or personally, to
pay, indemnify or hold harmless any Indemnitee under this Article IX;

        (b)     is not an obligation binding on Lessor except to the extent of
any payment received by Lessor pursuant to Section 9.1.1; and

        (c)     shall be paid and discharged solely and exclusively from amounts
received by Lessor pursuant to Section 9.1.1, and it is expressly agreed by each
Construction Period Indemnitee that the sole recourse of each such Person for
payment or discharge of the indemnification obligations created under Section
9.1.3(iii) shall be to such amounts paid by Lessor pursuant to this Section
9.1.3, provided that upon request by a Construction Period Indemnitee, Lessor
shall demand indemnification from Lessee pursuant to Section 9.1.1; and

        (d)     is the sole and exclusive right of each Construction Period
Indemnitee against Lessor, and any right to proceed against Lessor individually
or otherwise under common law,

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<PAGE>

                                                         PARTICIPATION AGREEMENT

federal or state securities laws or otherwise for indemnification or
contribution in connection with the matters covered by this Section 9.1.3 is
hereby expressly waived by each Indemnitee (other than claims that may be made
against Lessor, individually or personally, for fraud, gross negligence or
willful misconduct).

        To the extent that any payments made pursuant to Section 9.1.1 or this
Section 9.1.3 are subsequently invalidated, declared to be fraudulent or
preferential, set aside or required to be repaid by Lessor to a trustee, debtor
in possession, receiver or other Person under any bankruptcy law, common law or
equitable cause, then to such extent, the Indemnitee who received any such
payments from Lessor (or any portion thereof) shall repay any such amounts to
Lessor, or as may otherwise be directed by a court of competent jurisdiction.

        The indemnification obligations of Lessor under this Section 9.1.3 shall
survive and be reinstated to the same extent, for the same period and in the
same manner as the indemnification obligations of Lessee.

        The right of any Construction Period Indemnitee to seek indemnification
from Lessor under this Section 9.1.3 is subject to and conditioned upon
compliance by any such Construction Period Indemnitee with the notice,
cooperation, appointment of counsel, contest rights and other provisions in
Section 9.6.

        SECTION 9.2. General Tax Indemnity.

        (a)     Tax Indemnity. Lessee shall pay (provided that during the
Construction Period Lessee shall request an Advance, the proceeds of which shall
be used to pay), defend and, on written demand, indemnify and hold harmless on
an after-tax basis (in accordance with Section 9.4) each Indemnitee from and
against any and all Taxes imposed by the United States federal taxing authority
or by the State of Maryland or any political subdivision thereof or taxing
authority therein, howsoever imposed, on or with respect to any Indemnitee, the
Properties or any portion thereof, any Operative Document or Lessee or any
sublessee or user of the Properties in connection with (i) the acquisition,
mortgaging, design, construction, preparation, installation, inspection,
delivery, non-delivery, acceptance, rejection, purchase, ownership, possession,
rental, lease, sublease, repossession, maintenance, repair, alteration,
modification, addition or substitution, storage, transfer of title, redelivery,
use, financing, refinancing, operation, condition, sale (including, without
limitation, any sale pursuant to Article V, VII or XIV of the Lease), return or
other disposition of all or any part of any interest in the Properties or the
imposition of any Lien (or incurrence of any liability to refund or pay over any
amount as a result of any Lien) thereon, (ii) Base Rent or Supplemental Rent or
the receipts or earnings arising from or received with respect to the Properties
or any part thereof, or any interest therein or any applications or dispositions
thereof, (iii) any other amount paid or payable pursuant to any Operative
Documents, (iv) the Properties or any part thereof or any interest therein, (v)
all or any of the Operative Documents, any other documents contemplated thereby
and any amendments and supplements thereto (except to the extent not initiated
or requested by or consented to by Lessee in writing), (vi) the issuance of the
Notes and Investor Certificates, (vii) any contract relating to the
construction, acquisition or delivery of the Properties or the Improvements or
any interest therein and (viii) otherwise in connection with the transactions
contemplated by the Operative Documents; provided, however, that the
indemnification obligation of this

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<PAGE>

                                                         PARTICIPATION AGREEMENT

Section 9.2(a) shall not apply to (A) Taxes which are based upon or measured by
the Indemnitee's net receipts or net income, or which are in substitution for,
or relieve such Indemnitee from, any actual Tax based upon or measured by such
Indemnitee's net receipts or net income (including Taxes that are or are in the
nature of minimum Taxes, capital gains, Tax preference items or alternative
minimum taxes; and including taxes based on gross income or gross receipts where
such Taxes would, in such taxable year, be based on net income or net receipts
based solely on the transactions contemplated by the Operative Documents); (B)
Taxes characterized under state or local law as franchise, net worth, or
shareholder's capital (excluding, however, any value-added, or similar Taxes);
(C) if no Construction Agency Event of Default, Lease Default or Lease Event of
Default exists, Taxes based upon the voluntary transfer, assignment or
disposition by an Indemnitee or any Affiliate thereof or any interest in such
Indemnitee, or any interest in any of the Properties or any part thereof or any
interest therein (other than transfers pursuant to the Security Documents,
transfers pursuant to the exercise of a Purchase Option, or the Remarketing
Option or otherwise pursuant to the Lease or at the request of Lessee); (D)
Taxes imposed or payable by an Indemnitee to the extent imposed with respect to
any period after the later of (x) the termination of the Lease and (y) the
return of the Properties; (E) any tax to the extent that such Tax would have
been imposed without regard to the transactions contemplated by the Operative
Documents; (F) Taxes or liability resulting from any prohibited transaction
described in Section 406 or 407 of ERISA or Section 4975(c) of the Code or any
successor provisions thereto that may arise in connection with any transaction
contemplated by the Operative Documents; (G) Taxes imposed against or payable by
an Indemnitee pursuant to Section 3406 of the Code; (H) any interest, penalties
or additions to Tax imposed against or payable by an Indemnitee that are the
result of the failure of such Indemnitee to file any return properly and timely,
unless such failure is caused by the failure of Lessee to forward to such
Indemnitee any information such Indemnitee has reasonably requested from Lessee
(other than information reasonably obtainable by, or in the possession of, such
Indemnitee) or to provide such Indemnitee on a timely basis with any
notifications or notices received by Lessee with respect to such return from any
applicable taxing authority; (I) except in the case of a holder of a Note, taxes
that result directly from such Indemnitee or any of its Affiliates not being "a
United States person" as such term is defined in Section 7701(a)(30) of the Code
and the applicable regulations thereunder; and (J) except as set forth in
Section 9.3, withholding taxes. Notwithstanding the foregoing, (x) Lessee shall
not be required to indemnify under this Section 9.2 for (1) as to any
Indemnitee, any Claim to the extent resulting from the gross negligence, willful
misconduct, bad faith or criminal conduct of such Indemnitee, any representation
or warranty by such Indemnitee in any of the Operative Documents being incorrect
in any material respect, or the breach by such Indemnitee of any of the
provisions of the Operative Documents; and (2) as to any Indemnitee, any Claim
such Indemnitee may have resulting from Lessor Liens which such Indemnitee is
responsible for discharging under the Operative Documents and (y) Lessee shall
be required to indemnify for Taxes imposed by a jurisdiction outside of the
United States as a result of (i) the payment by Lessee of any amount pursuant to
this Participation Agreement or the other Operative Documents from, or (ii) the
booking by Lessee of some or all of the transaction contemplated by the
Operative Documents in, such jurisdiction.

        Notwithstanding the foregoing, the exclusions from Lessee's
indemnification obligation of this Section 9.2(a) set forth in sub-clauses (A),
(B) and (C) (to the extent that any such Tax is imposed by its express terms in
lieu of or in substitution for a Tax set forth in subclauses (A),

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                                                         PARTICIPATION AGREEMENT

(B) and (C) above shall not apply (but the other exclusions shall apply) to any
Taxes or any increase in Taxes imposed on an Indemnitee net of any decrease in
Taxes realized by such Indemnitee, to the extent that the imposition of such
Taxes or such Tax increase (or , if applicable, such decrease in Taxes) would
not have occurred if on each Advance Date Lessor had advanced funds to Lessee in
the form of a loan secured by the Properties in an amount equal to the Advance
funded on such Advance Date, with debt service for such loans equal to the Base
Rent payable on each Scheduled Payment Date and a principal balance at the
maturity of such loan in an amount equal to the Lease Balance at the end of the
Lease Term.

        (b)     Contests. Lessee shall pay (provided that during the
Construction Period Lessee shall request an Advance, the proceeds of which shall
be used to pay) on or before the time or times set forth in Section 9.2(c) all
Taxes indemnifiable by Lessee under Section 9.2(a); provided, however, that
Lessee shall be under no obligation to pay any such Tax so long as the payment
of such Tax is not delinquent or is being contested by a Permitted Contest. If
any claim or claims is or are made against any Indemnitee for any Tax which is
subject to indemnification as provided in Section 9.2(a), such Indemnitee shall,
as soon as practicable, but in no event more than thirty (30) days after receipt
of formal written notice of the Tax or proposed Tax, notify Lessee; provided,
however, that the failure to give such notice shall not limit Lessee's
obligations under Section 9.2(a) except to the extent that such failure
effectively precludes the ability to conduct a contest of any indemnifiable
Taxes. The Indemnitee shall not take any action with respect to such claim,
proceeding or Imposition without the written consent of Lessee (such consent not
to be unreasonably withheld or unreasonably delayed) for 30 days after the
receipt of such notice by Lessee; provided, however, that in the case of any
such claim or proceeding, if such Indemnitee shall be required by law or
regulation to take action prior to the end of such 30-day period, such
Indemnitee shall in such notice to Lessee, so inform Lessee, and such Indemnitee
shall not take any action with respect to such claim, proceeding or Tax without
the consent of Lessee (such consent not to be unreasonably withheld or
unreasonably delayed) for 10 days after the receipt of such notice by Lessee,
unless the Indemnitee shall be required by law or regulation to take action
prior to the end of such 10-day period.

        Lessee shall be entitled for a period of 30 days from receipt of such
notice from the Indemnitee (or such shorter period as the Indemnitee has
notified Lessee is required by law or regulation for the Indemnitee to commence
such contest), to request in writing that such Indemnitee permit Lessee to
contest the imposition of such tax, at Lessee's sole cost and expense. If (x)
such contest can be pursued in the name of Lessee and independently from any
other proceeding involving a liability of such Indemnitee for which Lessee has
not agreed to indemnify such Indemnitee, (y) such contest must be pursued in the
name of the Indemnitee, but can be pursued independently from any other
proceeding involving a Tax liability of such Indemnitee for which Lessee has not
agreed to indemnify such Indemnitee or (z) the Indemnitee so requests, then
Lessee shall be permitted to control the contest of such claim, provided that in
the case of a contest described in any of clause (x), (y) or (z), if such
Indemnitee reasonably determines that such contest by Lessee could have an
adverse impact on the business or operations of the Indemnitee and Indemnitee
provides notice to Lessee of such determination, the Indemnitee may elect to
control or reassert control of the contest. In all other claims requested to be
contested by Lessee, the Indemnitee shall control the contest of such claim,
acting through counsel reasonably acceptable to Lessee. In no event shall Lessee
be permitted to contest (or the Indemnitee required to contest) any claim, (A)
if such Indemnitee provides Lessee with a legal

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                                                         PARTICIPATION AGREEMENT

opinion of independent counsel that such action, suit or proceeding involves a
risk of imposition of criminal liability or will involve a meaningful risk of
the sale, forfeiture or loss of, or the creation of any Lien (other than a
Permitted Lien) on the Property or any part of any thereof, unless Lessee shall
have posted and maintained a bond or other security reasonably satisfactory to
the relevant Indemnitee in respect to such risk, (B) if an Event of Default or a
Lease Event of Default has occurred and is continuing, unless Lessee shall have
posted and maintained a bond or other security reasonably satisfactory to the
relevant Indemnitee in respect of the Taxes subject to such claim and any and
all expenses for which Lessee is responsible hereunder reasonably foreseeable in
connection with the contest of such claim, (C) unless Lessee shall have agreed
to pay and shall pay (provided that during the Construction Period Lessee shall
request an Advance, the proceeds of which shall be used to pay) to such
Indemnitee on demand all reasonable out-of-pocket costs, losses and expenses
that such Indemnitee may incur in connection with contesting such imposition,
including all reasonable legal, accounting and investigatory fees and
disbursements as well as the impositions which are the subject of such claim to
the extent the contest is unsuccessful, or (D) if such contest shall involve the
payment of the Tax prior to the contest, unless Lessee shall provide to the
Indemnitee an interest-free advance in an amount equal to the Imposition that
the Indemnitee is required to pay (with no additional net after-tax costs
(including Taxes) but taking into account any net tax savings associated with
such advance to such Indemnitee). In addition, for Indemnitee controlled
contests and claims contested in the name of the Indemnitee in a public forum,
no contest shall be required: (A) unless the amount of the potential indemnity
(taking into account all similar or logically related claims that have been or
could be raised in any audit involving such Indemnitee for which Lessee may be
liable to pay an indemnity under this Section 9.2) exceeds $100,000 and (B)
unless, if requested by the Indemnitee, Lessee shall have provided to the
Indemnitee an opinion of independent tax counsel selected by the Indemnitee and
reasonably acceptable to Lessee) that a reasonable basis exists to contest such
claim. In no event shall an Indemnitee be required to appeal an adverse judicial
determination to the United States Supreme Court.

        The party conducting the contest shall consult in good faith with the
other party and its counsel with respect to the contest of such claim for Taxes
(or claim for refund) but the decisions regarding what actions to be taken shall
be made by the controlling party in its sole judgment, provided, however, that
if the Indemnitee is the controlling party and Lessee recommends the acceptance
of a settlement offer made by the relevant Authority and such Indemnitee rejects
such settlement offer, then the amount for which Lessee will be required to
indemnify such Indemnitee with respect to the Taxes subject to such offer shall
not exceed the amount which it would have owed if such settlement offer had been
accepted. In addition, the controlling party shall keep the non-controlling
party reasonably informed as to the progress of the contest, and shall provide
the non-controlling party with a copy of (or appropriate excerpts from) any
reports or claims issued by the relevant auditing agents or taxing authority to
the controlling party thereof, in connection with such claim or the contest
thereof.

        Each Indemnitee shall supply Lessee with such information and documents
within such Indemnitee's possession reasonably requested by Lessee as are
necessary or advisable for Lessee to participate in any action, suit or
proceeding to the extent permitted by this Section 9.2(b), and Lessee shall
promptly reimburse such Indemnitee for the reasonable out-of-pocket expenses of
supplying such information and documents.

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                                                         PARTICIPATION AGREEMENT

        Notwithstanding anything contained herein to the contrary, an Indemnitee
will not be required to contest (and Lessee shall not be permitted to contest) a
claim with respect to the imposition of any Tax if (i) such Indemnitee shall
waive its right to indemnification under this Section 9.2 with respect to such
claim and shall pay to Lessee any amount previously paid or advanced by Lessee
pursuant to this Section 9.2 or (ii) such Tax is the sole result of a claim of a
continuing and consistent nature, which claim has previously been resolved
against the relevant Indemnitee (unless a change in law or facts has occurred
since such prior adverse resolution and Lessee provides, at Lessee's expense, an
opinion of independent tax counsel reasonably acceptable to such Indemnitee to
the effect that it is more likely than not that such change in law or facts will
result in a favorable resolution of the claim at issue).

        (c)     Payments. Subject to Section 9.2(b), any Tax indemnifiable under
Section 9.2(a) shall be paid directly when due to the applicable taxing
authority if direct payment is practicable and permitted. If direct payment to
the applicable taxing authority is not permitted or is otherwise not made, any
amount payable to an Indemnitee pursuant to Section 9.2(a) shall be paid within
thirty (30) days after receipt of a written demand therefor from such Indemnitee
accompanied by a written statement describing in reasonable detail the amount so
payable. Any payments made pursuant to Section 9.2(a) directly to the Indemnitee
entitled thereto or Lessee, as the case may be, shall be made in immediately
available funds at such bank or to such account as specified by the payee in
written directions to the payor, or, if no such direction shall have been given,
by check of the payor payable to the order of the payee by certified mail,
postage prepaid at its address as set forth in Schedule II. Subject to Section
9.2(b), upon the request of any Indemnitee with respect to a Tax that Lessee is
required to pay, Lessee shall furnish to such Indemnitee the original or a
certified copy of a receipt for its payment of such Tax or such other evidence
of payment as is reasonably acceptable to such Indemnitee. If the Indemnitee has
actual knowledge of Lessee's failure to pay any Tax required to be paid by
Lessee hereunder, such Indemnitee shall notify Lessee of such failure within 30
days of such Indemnitee's obtaining such actual knowledge.

        Upon receipt by an Indemnitee of a refund or credit of all or part of
any Taxes paid or indemnified against by Lessee, which refund or credit was not
previously taken into account in determining the amount of Lessee's payment to
such Indemnitee, such Indemnitee shall pay to Lessee, on a grossed-up basis as
set forth in Section 9.4(b), an amount equal to the amount of such refund, plus
any interest received by or credited to such Indemnitee with respect to such
refund; provided, however, that as long as an Event of Default is continuing any
such amounts may be applied against any amounts due and owing by Lessee under
the Lease or the other Operative Documents; provided, further, however, that no
Indemnitee shall be required to pay to Lessee any refund or credit to the extent
such refund or credit is greater than the amount of Taxes in respect of which
payment or indemnification was made by Lessee, reduced by all prior payments by
such Indemnitee under this Section 9.2(c) in respect of such amount. If such
repaid refund or credit is thereafter lost, the additional Tax payable shall be
treated as a Tax indemnifiable hereunder without regard to the exclusions from
indemnified Taxes set forth in Section 9.2(a).

        (d)     Reports. If any report, return or statement is required to be
filed with respect to any Taxes that are subject to indemnification under
Section 9.2(a) Lessee shall, if Lessee is permitted by Applicable Laws, timely
prepare and file such report, return or statement; provided,

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                                                         PARTICIPATION AGREEMENT

however, that if Lessee is not permitted by Applicable Laws to file any such
report Lessee will promptly so notify the appropriate Indemnitee, in which case
the Indemnitee will file any such report after preparation thereof by Lessee,
provided, that in each case such Indemnitee shall have furnished Lessee with
such information not within the control of (or otherwise reasonably available
to) Lessee, as is in such Indemnitee's control or is reasonably available to
such Indemnitee and necessary to file such filing. Lessee will deliver any such
return, together with immediately available funds for payment of any Tax due, to
such Indemnitee at least twenty (20) days in advance of the date such return or
payment is due. Lessee agrees that, with respect to Taxes pertaining to the
Properties, Lessee shall be solely responsible for the accuracy, except to the
extent of any information provided by the Indemnitee, and completeness of all
required forms for execution by the appropriate Person, and Indemnitee's sole
responsibility shall be to execute all such forms, to the extent required by
Applicable Laws, at the reasonable direction of Lessee. If the Indemnitee has
actual knowledge of Lessee's failure to file any report required to be filed by
Lessee hereunder, such Indemnitee shall notify Lessee of such failure within 30
days of obtaining such actual knowledge.

        (e)     Tax Ownership. Each of Lessor, Liquidity Providers and Investors
(and the respective successors, assigns and transferees of each of the
foregoing) covenants, represents and warrants that it will not claim ownership
for United States Tax purposes of (or any tax benefits, including depreciation,
with respect to ownership of) the Properties prior to the termination of the
Lease, it being understood that Lessee is and will remain the owner of the
Properties for such income tax or other tax purposes during the term of the
Lease. Nothing in this Section 9.2 shall require any Participant to disclose any
tax returns to Lessee.

        SECTION 9.3. Withholding Tax.

        (a)     On the Initial Advance Date, or in the case of a Person that
actually becomes a Participant after the Initial Advance Date at least ten (10)
Business Days prior to the first date on which any payment is due hereunder to
such Participant, each Participant that is a Non-U.S. Person shall deliver to
each of Lessee, Lessor and Conduit (if such Participant is a Liquidity Provider)
the Prescribed Forms. If any Participant that is a Non-U.S. Person is unable to
so deliver the Prescribed Forms, Lessee, Lessor or any other appropriate party
shall be entitled to withhold from any payments to such Participant under this
Participation Agreement, and Conduit shall be entitled to withhold from any
payments to such Participant under the Liquidity Agreement, such amounts of Tax
as may be required by law to be so withheld, after taking into account any
reduction in the rate of applicable withholding Tax to which such Participant
may establish its eligibility by duly filing an IRS Form W-8BEN or W-8ECI (or
successor form) with Lessee and Lessor, and Lessee and Lessor shall have no
obligation to pay such Participant for any Taxes so withheld, except as provided
in Section 9.3(b).

If any change occurs after a Non-U.S. Person becomes a Participant which renders
the Prescribed Forms previously delivered by such Participant inapplicable or,
in the case of any Prescribed Form that is not, by its terms, effective for the
Lease Term, which would prevent such Person from duly completing and delivering
any renewal, extension or continuation of a Prescribed Form previously filed by
such Person, such Participant shall promptly (after obtaining actual knowledge
of such change) advise Lessee, Lessor and Conduit (if such Participant is a
Liquidity Provider) that it is no longer capable of receiving payments without
the withholding of United

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                                                         PARTICIPATION AGREEMENT

States Tax and that Lessee, Lessor and Conduit (if such Participant is a
Liquidity Provider) are obligated to withhold United States Tax from payments by
them to such Participant. If any such change involves a change in a treaty, law
or regulation (or a published change in the interpretation or application
thereof), Lessee shall be obligated to pay (provided that during the
Construction Period Lessee shall request an Advance, the proceeds of which shall
be used to pay) such Participant, on an After-Tax Basis, for any United States
Tax which must be withheld from payments made to such Participant under this
Participation Agreement after such Participant notifies Lessee and Lessor of
such change, but only if and to the extent that the obligation to withhold such
United States Tax arises solely by reason of a change in treaty, law, or
regulation which takes effect after the date on which such Participant became a
Participant.

        (b)     If and to the extent Lessor (or its agent) has in good faith
attempted to comply with its obligation to withhold Taxes and a claim is made
against it or another Indemnitee, as between Lessee and Lessor (or its agent),
Lessee shall be responsible for, and Lessee shall indemnify and hold harmless
Lessor (or its agent) (without any duplication of indemnification otherwise
required under this Participation Agreement) on an After-Tax Basis against, such
claim to the extent Lessor (or its agent) has paid funds to any Authority with
respect to such withholding taxes or has received a demand therefor (provided
that during the Construction Period Lessee shall request an Advance, the
proceeds of which shall be used to pay such funds).

        (c)     Should a Participant ever receive any refund, credit or
deduction from any taxing authority to which such Participant would not be
entitled but for the payment by Lessee of any United States federal, state or
local Tax, pursuant to Section 9.3(b), such Participant thereupon shall repay to
Lessee an amount with respect to such refund, credit or deduction equal to any
net reduction in Taxes actually obtained by such Participant which is
attributable to such refund, credit or deduction (but not in excess of the
amount of the related payment paid by Lessee to, or for, the Participant
pursuant to Section 9.3(b)).

        (d)     Notwithstanding anything herein to the contrary, Lessee shall
indemnify any Indemnitee against any Taxes imposed by way of withholding by a
jurisdiction outside of the United States solely as a result of (i) the payment
by Lessee of any amount pursuant to this Participation Agreement or the other
Operative Documents from, or (ii) the booking by Lessee of some or all of the
transactions contemplated by the Operative Documents in, such jurisdiction.

        SECTION 9.4. Calculation of General Tax Indemnity Payments.

        (a)     Any payment or indemnity to or for the benefit of any Indemnitee
with respect to a Tax which is subject to indemnification under Section 9.2(a)
shall (A) (other than payment of Taxes to applicable Governmental Authorities)
reflect the actual current net savings available to such Indemnitee or any
Affiliate thereof resulting from the current deduction of such indemnified Tax
or the event or circumstance giving rise thereto (such current net savings to be
determined on an incremental basis after taking into account all other available
deductions of the Indemnitee) and (B) include, after taking into account the
savings described in clause (A), the amount necessary to hold such Indemnitee
harmless on an After-Tax Basis; provided that, at the request of Lessee, an
Indemnitee will certify to Lessee the extent, if any, to which such Indemnitee
was able to use currently such deduction on its tax return. If, by reason of any
payment made to or for the account of an Indemnitee by Lessee pursuant to
Section 9.2, or the

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                                                         PARTICIPATION AGREEMENT

event or circumstance giving rise to such payment, such Indemnitee or an
Affiliate actually realizes a net tax benefit, savings, deduction or credit not
taken into account in computing such payment, such Indemnitee shall promptly pay
to Lessee an amount equal to the sum of (x) the actual net reduction in Taxes,
if any, realized by such Indemnitee or any Affiliate thereof attributable to
such net tax benefits, savings, deduction or credits and (y) the actual net
reduction in any Taxes realized by such Indemnitee or an Affiliate as the result
of any payment made by such Indemnitee pursuant to this sentence; provided that,
no Indemnitee shall be obligated to make any payment pursuant to clause (x) of
this Section 9.4(a) to the extent that the amount of such payment would exceed
(1) the amount of all prior payments of Tax or payments under Section 9.2(c)
paid by Lessee to or on behalf of such Indemnitee pursuant to this Section 9.4
less (2) the amount of all prior payments pursuant to this Section 9.4(a) and
described in clause (x) by such Indemnitee to Lessee; but any such excess shall
reduce pro tanto any amount of Taxes under Section 9.2 that Lessee is
subsequently obligated to pay directly to such Indemnitee (as opposed to
directly to any taxing authority pursuant to the first sentence of Section
9.2(c)) pursuant to this Section 9.4.

        (b)     After-Tax Basis. If an Indemnitee shall not be entitled to a
corresponding and equal deduction or deductions for United States Tax purposes
with respect to any payment or Tax which Lessee is required to pay or reimburse
under any other provision of this Article IX (each such payment or reimbursement
an "original payment"), in the same taxable year of such Indemnitee as the year
of inclusion in its taxable income of such "original payment", then Lessee shall
pay (provided that during the Construction Period Lessee shall request an
Advance, the proceeds of which shall be used to pay) to such Indemnitee on
demand the amount of such "original payment" on a grossed-up basis such that
after subtracting all United States Taxes imposed on such Indemnitee with
respect to such "original payment" (determined for this purpose based on the
actual Federal, state and local marginal rates applicable to the Indemnitee for
the year in which such income is taxable as determined in good faith by such
Indemnitee), such payments shall be equal to the "original payment" (net of any
credits, deductions or other tax benefits then actually recognized that arise
from the payment or deemed payment by such Indemnitee of any amount, including
taxes, for which the payment received or deemed received is made). If an
Indemnitee is subsequently entitled to a corresponding and equal deduction in
the same taxable year as the year of inclusion in its taxable income, such
Indemnitee shall pay to Lessee an amount equal to the amount paid as a gross-up
with respect to such original payment.

        SECTION 9.5. Environmental Indemnity. Without limitation of the other
provisions of this Article IX, Lessee hereby agrees to indemnify, hold harmless
and defend each Indemnitee from and against any and all Claims (including claims
for natural resources damages and third party claims for personal injury or real
or personal property damage), losses, damages, liabilities, fines, penalties,
charges, administrative and judicial proceedings (including informal
proceedings) and orders, judgments, remedial action, requirements, enforcement
actions of any kind, and all reasonable and documented third party costs and
expenses incurred in connection therewith (including, but not limited to,
reasonable and documented attorneys', paralegals', experts' and/or consultant's
fees and expenses), including, but not limited to, all costs incurred in
connection with any investigation or monitoring of site conditions or any
clean-up, remedial, removal or restoration work by any federal, state or local
government agency, or judicial proceeding, arising in whole or in part, out of

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                                                         PARTICIPATION AGREEMENT

        (a)     the presence on or under either Property of any Hazardous
Materials, or any releases or discharges, or threatened releases or discharges
of any Hazardous Materials on, under, from or onto either Property, whether from
historic or future threatened releases of Hazardous Materials,

        (b)     any activity, including construction, carried on or undertaken
on or off either Property, and whether by Lessee or any predecessor in title or
any employees, agents, contractors or subcontractors of Lessee or any
predecessor in title, or any other Person (including such Indemnitee), in
connection with the handling, treatment, removal, storage, decontamination,
clean-up, transport or disposal of any Hazardous Materials that at any time are
located or present on or under or that at any time migrate, flow, percolate,
diffuse or in any way move onto or under either Property,

        (c)     loss of or damage to any property or the environment (including
clean-up costs, response costs, remediation and removal costs, cost of
corrective action, costs of financial assurance, fines and penalties and natural
resource damages), or death or injury to any Person, and all expenses associated
with the protection of wildlife, aquatic species, vegetation, flora and fauna,
and any mitigative action required by or under Environmental Laws, in each case
arising from or in any way related to the Land, any Improvements, Lessee or the
Overall Transaction,

        (d)     with respect to the Land or any Improvements, any claim
concerning lack of compliance with Environmental Laws, or any act or omission
causing an environmental condition that requires remediation or would allow any
Governmental Authority to record a Lien on the land records, or

        (e)     any residual contamination on or under the Land, or affecting
any natural resources, and to any contamination of any property or natural
resources arising in connection with the generation, use, handling, storage,
transport or disposal of any Hazardous Materials, and irrespective of whether
any of such activities were or will be undertaken in accordance with Applicable
Laws;

provided, however, Lessee shall not be required to indemnify any Indemnitee
under this Section 9.5 for (1) any Claim to the extent resulting from the
willful misconduct or gross negligence of such Indemnitee, or any Affiliate of
such Indemnitee (it being understood that Lessee shall be required to indemnify
an Indemnitee even if the ordinary (but not gross) negligence of such
Indemnitee, or any Affiliate of such Indemnitee, caused or contributed to such
Claim) or (2) any Claim to the extent attributable to acts or events which occur
after the expiration of the Lease Term or earlier termination of the Lease and
the return of the Properties by Lessee in accordance with the terms thereof
(except (A) to the extent fairly attributable to acts, events, liabilities or
damages occurring or accruing prior thereto; (B) Claims arising following the
termination or expiration of the Lease Term so long as any Agent or any
Participant continues to exercise remedies against Lessee in respect of the
Operative Documents and (C) Claims arising after the expiration of the Lease
Term so long as Lessor is remarketing the Properties (or any interest therein)
in accordance with Section 7.1 of the Lease). It is expressly understood and
agreed that the indemnity provided for herein shall survive the expiration or
termination of, and shall be separate and independent from any remedy under, the
Lease or any other Operative Document.

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                                                         PARTICIPATION AGREEMENT

        SECTION 9.6. Proceedings in Respect of Claims. With respect to any
amount that Lessee is requested by an Indemnitee to pay by reason of Section 9.1
or 9.5, such Indemnitee shall, if so requested by Lessee and prior to any
payment, submit such additional information to Lessee as Lessee may reasonably
request and which is in the possession of such Indemnitee to substantiate
properly the requested payment.

        In case any action, suit or proceeding shall be brought against any
Indemnitee in respect of a Claim covered by Lessee's indemnification
obligations, such Indemnitee shall promptly notify Lessee of the commencement
thereof, and Lessee shall be entitled, at its expense, to participate in, and,
to the extent that Lessee desires to, assume and control the defense thereof;
provided, however, that Lessee shall keep such Indemnitee fully apprised of the
status of such action, suit or proceeding and shall provide such Indemnitee with
all information with respect to such action, suit or proceeding as such
Indemnitee shall reasonably request, and provided, further, that Lessee shall
not be entitled to assume and control the defense of any such action, suit or
proceeding if and to the extent that, (A) in the reasonable opinion of such
Indemnitee, (x) such action, suit or proceeding involves any risk of imposition
of criminal liability or creates a material risk of the sale, loss or forfeiture
of either Property or impairs in any way the payment of Base Rent or
Supplemental Rent or the Lien of the Deeds of Trust or gives rise to the
creation of any Lien other than a Permitted Lien with respect to the Properties
or any portion thereof or (y) the control of such action, suit or proceeding
would involve an actual or potential conflict of interest (as set forth in a
written legal opinion of independent counsel to such Indemnitee (based on
factual determinations set forth in a certificate furnished by such Indemnitee
to its counsel, upon which certificate counsel to such Indemnitee may rely),
which opinion shall be reasonably satisfactory to Lessee), (B) such proceeding
involves material Claims not fully indemnified by Lessee which Lessee and the
Indemnitee have been unable to sever from the indemnified claim(s), (C) an Event
of Default has occurred and is continuing or (D) Lessee has not acknowledged in
writing that such claim is fully indemnified by Lessee hereunder. The Indemnitee
may participate in a reasonable manner at its own expense with its own counsel
in any proceeding conducted by Lessee in accordance with the foregoing. Lessee
may enter into any settlement or other compromise on behalf of the Indemnitee
with respect to any Claim which is entitled to be indemnified under Section 9.1
or 9.5, and which Lessee has acknowledged its obligation to indemnify, without
the prior written consent of the Indemnitee, except as to any settlement or
compromise requiring an admission of wrongdoing or liability of such Indemnitee.

        Each Indemnitee shall, at the sole expense of Lessee (provided that
during the Construction Period Lessee shall request an Advance, the proceeds of
which shall be used to pay such expenses), supply to Lessee such information,
documents and the identity of witnesses reasonably requested by Lessee as are
necessary or advisable for Lessee to participate in any action, suit or
proceeding to the extent permitted by this Section 9.6 and which are reasonably
available to such Indemnitee. Unless a Lease Event of Default or Construction
Agency Event of Default or any other Event of Default caused by a Lease Default
or Construction Agency Default has occurred and is continuing, no Indemnitee
shall enter into any settlement or other compromise with respect to any Claim
which is entitled to be indemnified under Section 9.1 or 9.5 without the prior
written consent of Lessee, which consent shall not be unreasonably withheld,
unless such Indemnitee waives its right to be indemnified under Section 9.1 or
9.5 with respect to such Claim.

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                                                         PARTICIPATION AGREEMENT

        Upon payment in full of any Claim by Lessee pursuant to Section 9.1 or
9.5 to or on behalf of an Indemnitee, Lessee, without any further action, shall
be subrogated to any and all claims that such Indemnitee may have relating
thereto (other than claims in respect of insurance policies maintained by such
Indemnitee at its own expense), and such Indemnitee shall execute such
instruments of assignment and conveyance, evidence of claims and payment and
such other documents, instruments and agreements as may be necessary to preserve
any such claims and otherwise cooperate with Lessee and give such further
assurances as are necessary or advisable to enable Lessee vigorously to pursue
such claims, all at Lessee's expense.

        Any amount payable to an Indemnitee pursuant to Section 9.1 or 9.5 shall
be paid to such Indemnitee promptly upon receipt of a written demand therefor
from such Indemnitee, accompanied by a written statement describing in
reasonable detail the basis for such indemnity and the computation of the amount
so payable.

        Any Construction Agency Indemnitee shall be deemed an "Indemnitee" for
purposes of this Section 9.6.

        SECTION 9.7. Additional Costs; Capital Adequacy. Lessee shall pay
(provided that during the Construction Period Lessee shall request an Advance,
the proceeds of which shall be used to pay) the following amounts ("Increased
Costs"):

        (a)     Additional Costs. In the event that any change after the date of
this Participation Agreement in Applicable Laws or in the interpretation thereof
by any governmental authority charged with the administration thereof imposes
any reserve, special deposit or similar requirement against assets of, deposits
with or for the account of, or credit extended by, any Participant, and the
result of any of the foregoing is to increase the cost to such Participant of
making or maintaining such Participant's Loans or Investor Amounts or committing
to make such Loans or Investor Amounts, or providing a commitment under the
Liquidity Agreement, by an amount which such Participant deems to be material,
then such Participant may, promptly upon becoming aware of such additional cost,
notify Lessee and thereafter Lessee shall pay to such Participant upon its
demand the additional amount or amounts necessary to compensate such Participant
for such additional cost accruing from and after the date of notice.

        (b)     Capital Adequacy. In the event that any change after the date of
this Agreement in Applicable Laws regarding capital adequacy or in the
interpretation thereof by any governmental authority charged with the
administration thereof does or shall have the effect of reducing the rate of
return on a Participant's capital as a consequence of its obligations hereunder
or under the Liquidity Agreement to a level below that which such Participant
could have achieved but for such change or interpretation (to the extent such
change or interpretation has not been reflected in the pricing of such
Participant's Loans or Investor Amounts and taking into consideration such
Participant's policies with respect to capital adequacy) by an amount deemed by
such Participant to be material, then such Participant may, promptly upon
becoming aware of such reduced return, notify Lessee thereof and thereafter
Lessee shall pay to such Participant upon its demand the additional amount or
amounts necessary to compensate such Participant for such reduced return
accruing from and after the date of notice.

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                                                         PARTICIPATION AGREEMENT

        SECTION 9.8. Illegality. If at any time any Participant or its
applicable lending office shall have determined in good faith (which
determination shall be conclusive) that the making or maintenance of Eurodollar
Loans has been made impracticable or unlawful because of compliance by such
Participant in good faith with any law or the administration thereof by any
official body charged with the interpretation or administration thereof or
because U.S. dollar deposits in the amount and maturity of the Eurodollar Loans
are not generally available in the London Eurodollar interbank market, then such
Participant shall forthwith give Lessee and Administrative Agent notice thereof
and the obligation to continue the Eurodollar Loans shall terminate and Lessee
shall, at its option, convert the outstanding Eurodollar Loans into ABR Loans or
prepay the Eurodollar Loans, such conversion or prepayment to become due, in the
case of impracticability, on the last day of the Interest Period in effect at
the time notice of impracticability is given and, in the case of illegality, on
the last day of the last Interest Period to end prior to the effectiveness of
the applicable change in law or such earlier date as may be required by the
relevant law or regulation.

        SECTION 9.9. Compensation. In the event that Lessee funds directly or
indirectly a prepayment of any Loan or Investor Amount on a day other than the
last day of an Interest Period, or in the event a Loan or Investor Amount is not
made on the Advance Date specified therefor (other than as a result of a default
by such Participant), or a Loan, Lessee shall pay (provided that during the
Construction Period Lessee shall request an Advance, the proceeds of which shall
be used to pay) to a Participant upon its demand an amount which will compensate
such Participant for any loss or expense incurred as a result of any such event
in respect of funds obtained for the purpose of making or maintaining such Loan
or Investor Amount (but not for any loss of profit in respect of any such
event), provided, that payments under this Section 9.9 shall not be due to any
Person entitled to payment by reason of Section 2.2.7.

        SECTION 9.10. Obligations of Lessee to Pay Certain Amounts. During the
Construction Period, Lessee shall request Advances to pay (and Administrative
Agent shall pay out of such Advances, as directed below), and during the Lease
Term, Lessee shall pay as Supplemental Rent under the Lease, all amounts
described in this Section 9.10.

        (a)     Administrative Agent Fees. To Fleet National Bank for its own
account, the fees agreed to in Administrative Agent Fee Letter for services
rendered as Administrative Agent.

        (b)     Structuring Fees. To Administrative Agent for the benefit of
First Union National Bank, the Administrator and the Fleet Investor, the
Structuring Fees owed to each on the Documentation Date.

        (c)     [Intentionally omitted.]

        (d)     Management Fees. (i) To Fleet National Bank, for its own
account, the fees agreed to in the CapitalFocus Investment Account Agreement,
dated as of even date hereof, among Lessee and Fleet National Bank, at times and
amounts provided therein, and (ii) to Evergreen Investment Management Company,
LLC, for its own account, the fees agreed to in the Institutional Investment
Management Agreement, dated as of even date hereof, among Lessee, First Union
National Bank and Evergreen Investment Management Company, LLC, at the times and
amounts provided therein.

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                                                         PARTICIPATION AGREEMENT

        (e)     Liquidity Fees. To the Administrative Agent for the benefit of
EagleFunding Capital Corporation, the Liquidity Fee due and payable to
EagleFunding Capital Corporation on each Scheduled Payment Date, commencing on
the first Scheduled Payment Date.

        (f)     Unused Fees. To the Administrative Agent for the benefit of each
Investor and EagleFunding Capital Corporation the Unused Fee payable to each
Investor and EagleFunding Capital Corporation, due and payable on each Scheduled
Payment Date, commencing on the first Scheduled Payment Date.

        (g)     Certain Professional Services. To the Construction Consultant or
Insurance Consultant (or to reimburse Fleet National Bank for such professional
services) for professional services rendered to the Lessor and/or the
Participants in connection with the Overall Transaction, payable on the Advance
Date next succeeding delivery of an invoice therefor. All fees under this clause
(g) shall be reasonable.

        SECTION 9.11. Indemnity Payments in Addition to Lease Obligations.
Lessee acknowledges and agrees that its obligations to make indemnity payments
under this Article IX are separate from, in addition to, and do not reduce, its
obligation to pay Base Rent or any other payment required hereunder or under any
other Operative Document in accordance with the provisions hereof and thereof.

        SECTION 9.12. Right to Convert. In the event Lessee shall be required to
make any payment to any Participant pursuant to Section 9.7, Lessee shall have
the right, upon not less than three Business Days' prior notice to such
Participant, to cause Lessor to convert the Loans or Investor Amount so affected
to loans bearing interest by reference to ABR.

        SECTION 9.13. Mitigation. Each Participant will use reasonable efforts
to avoid or mitigate any increased cost, reduced receivable or obligation to
prepay under Section 9.7 or 9.8 (including transferring the Loans or Investor
Amounts, as applicable, to another applicable lending office or Affiliate of
such Participant) unless, in the sole opinion of such Participant, such efforts
could have an adverse effect upon it.

        SECTION 9.14. Liquid Collateral. In the event that any Participant or
Indemnitee has a right to payment under this Article IX, the related Collateral
Agent shall demand such payment from Lessee. If Lessee fails to pay such payment
in accordance with this Article IX, then, within two (2) Business Day of such
failure, the related Collateral Agent may withdraw from Liquid Collateral under
its related Account for payment to the asserting Participant or Indemnitee. Upon
any such withdrawal, Lessee shall deliver Additional Liquid Collateral to such
Collateral Agent pursuant to Section 2.5(a) of the related Liquid Collateral
Agreement.

                                   ARTICLE X

                  DISTRIBUTIONS OF PAYMENTS AND GROSS PROCEEDS

        In order to provide for the priority and allocation of payments received
from Lessee, Gross Sales Proceeds and the proceeds of the exercise of remedies
by Lessor, any Agent or any of the Participants pursuant to the Lease and the
Security Documents, the parties hereto agree as follows:

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                                                         PARTICIPATION AGREEMENT

        SECTION 10.1. Agreement of Agents and Participants. Pursuant to the
Security Agreement, the Assignment of Lease and the other Security Documents,
all of the payments (other than the Excluded Amounts) payable by Lessee to
Lessor under the Lease or the Construction Agency Agreement or payable by Lessor
to the Lenders under the Conduit Notes, the Facility Notes, or the Loan
Agreement or any payments under this Participation Agreement or any other
Operative Documents have been assigned to Administrative Agent for the benefit
of the Lenders, Lessor and/or Investors, as applicable. Except as otherwise
provided in Section 10.2 or Section 10.8, Administrative Agent hereby agrees to
distribute as set forth herein all payments, receipts and other consideration of
any kind whatsoever (other than Excluded Amounts) received by Administrative
Agent pursuant to the Security Agreement, the Assignment of Lease and any other
Security Document, other than any such payments received after the Lease Term
Expiration Date which shall be distributed by Administrative Agent, upon
receipt, in accordance with this Article X (it being understood that any such
payment received on or before 1:00 p.m. (New York City time) in accordance with
the provisions of the Lease, this Participation Agreement and the other
Operative Documents shall be distributed by Administrative Agent on the same
Business Day as received to the extent practicable).

        SECTION 10.2. Base Rent. Subject to Section 10.8, each payment of Base
Rent (and any payment of interest on overdue installments of Base Rent) shall be
distributed by Administrative Agent in accordance with Section 3.3 of the Lease
as follows:

                first, an amount equal to Loan Base Rent shall be distributed to
        the Commercial Paper Account of Conduit and to the Liquidity Providers
        to pay in full interest then due and owing on the Loans in accordance
        with the terms of the Loan Agreement and the Liquidity Agreement, and

                second, an amount equal to the Investor Base Rent shall be
        distributed to each Investor to pay in full all accrued but unpaid Yield
        on the Investor Amounts then due and owing on such day (together with
        any overdue interest thereon).

        SECTION 10.3. Purchase Payments by Lessee.

        (a)     Any payment on any day (other than payments with respect to
Excluded Amounts and Base Rent) made by Lessee pursuant to the Lease, including
Supplemental Rent to pay any Break Costs resulting from such termination, in
whole or in part, of a Lessor Hedging Agreement, in connection with the purchase
of both Properties in connection with Lessee's exercise of its Purchase Option
under Section 5.1 of the Lease, an Event of Loss with respect to both Properties
under Section 14.1(a)(i) of the Lease or Section 2.5(a)(ix) of the Construction
Agency Agreement shall be distributed by Administrative Agent as follows:

                (i)     to the Liquidity Providers to reimburse in full the
        aggregate outstanding principal amount of the Borrowings made by the
        Liquidity Providers with respect to the Facility Loans, together without
        duplication for payments made under Section 10.2, with all accrued and
        unpaid interest thereon,

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                                                         PARTICIPATION AGREEMENT

                (ii)    to the Commercial Paper Account of Conduit to repay in
        full the outstanding principal amount of all Conduit Loans, together
        without duplication for payments made under Section 10.2, with all
        accrued and unpaid interest thereon,

                (iii)   to each Investor to pay in full the Investor Amounts,
        together without duplication for amounts paid under Section 10.2, with
        all accrued and unpaid Yield on the Investor Contributions, and

                (iv)    to each Lessor Hedging Agreement Counterparty to pay in
        full all amounts then due and payable to such Lessor Hedging Agreement
        Counterparty, including any Break Costs, under the Lessor Hedging
        Agreements.

        (b)     Any payment on any day (other than payments with respect to
Excluded Amounts and Base Rent) made by Lessee pursuant to the Lease, including
Supplemental Rent to pay any Break Costs resulting from such termination, in
whole or in part, of a Lessor Hedging Agreement, in connection with the purchase
of one but not both Properties in connection with Lessee's exercise of its
Purchase Option under Section 5.1 of the Lease, an Event of Loss with respect to
one but not both Properties under Section 14.1(a)(i) of the Lease or Section
2.5(a)(ix) of the Construction Agency Agreement shall be distributed by
Administrative Agent as follows:

                first, to the Liquidity Providers to reimburse in full the
        Allocable Portion of the aggregate outstanding principal amount of the
        Borrowings made by the Liquidity Providers with respect to the A Loans,
        together without duplication for payments made under Section 10.2, with
        all accrued and unpaid interest thereon (provided that to the extent all
        amounts pursuant to this clause first are insufficient to reimburse the
        Allocable Portion of the principal, together without duplication for
        payments made under Section 10.2, with all accrued and unpaid interest
        thereon, then due and owing with respect to the A Loans on such day to
        each Liquidity Provider in full, such amounts shall be distributed to
        each Liquidity Provider in accordance with each such Liquidity
        Provider's Liquidity Provider Share; provided further that no payment
        pursuant to the first proviso of this clause first shall be made to a
        Liquidity Provider in excess of the Allocable Portion of the outstanding
        principal amount, together without duplication for payments made under
        Section 10.2, with all accrued and unpaid interest thereon, of the
        Borrowings made by such Liquidity Provider with respect to the A Loans),

                second, the balance, if any, to the Liquidity Providers to,
        without duplication for payments made under clause first, reimburse in
        full the Allocable Portion of the aggregate outstanding principal amount
        of the Borrowings made by the Liquidity Providers with respect to the A
        Loans, together without duplication for payments made under Section
        10.2, with all accrued and unpaid interest thereon,

                third, the balance, if any, to be deposited in the Commercial
        Paper Account of Conduit to repay in full the Allocable Portion of the
        outstanding principal amount of A Loans held by Conduit, together
        without duplication for payments made under Section 10.2, with all
        accrued and unpaid interest thereon,

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                                                         PARTICIPATION AGREEMENT

                fourth, the balance, if any, to the Liquidity Providers to
        reimburse in full the Allocable Portion of the aggregate outstanding
        principal amount of the Borrowings made by the Liquidity Providers with
        respect to the B Loans, together without duplication for payments made
        under Section 10.2, with all accrued and unpaid interest thereon
        (provided that to the extent all amounts pursuant to this clause fourth
        are insufficient to reimburse the Allocable Portion of the principal,
        together without duplication for payments made under Section 10.2, with
        all accrued and unpaid interest thereon, then due and owing with respect
        to the B Loans on such day to each Liquidity Provider in full, such
        amounts shall be distributed to each Liquidity Provider in accordance
        with each such Liquidity Provider's Liquidity Provider Share; provided
        further that no payment pursuant to the first proviso of this clause
        fourth shall be made to a Liquidity Provider in excess of the Allocable
        Portion of the outstanding principal amount, together without
        duplication for payments made under Section 10.2, with all accrued and
        unpaid interest thereon, of the Borrowings made by such Liquidity
        Provider with respect to the B Loans),

                fifth, the balance, if any, to the Liquidity Providers to,
        without duplication for payments made under clause fourth, reimburse in
        full the Allocable Portion of the aggregate outstanding principal amount
        of the Borrowings made by the Liquidity Providers with respect to the B
        Loans, together without duplication for payments made under Section
        10.2, with all accrued and unpaid interest thereon,

                sixth, the balance, if any, to be deposited in the Commercial
        Paper Account of Conduit to repay in full the Allocable Portion of the
        outstanding principal amount of B Loans held by Conduit, together
        without duplication for payments made under Section 10.2, with all
        accrued and unpaid interest thereon,

                seventh, the balance, if any, to be distributed to each Investor
        to pay in full the Allocable Portion of the Investor Amounts together
        without duplication for payments made under Section 10.2, with all
        accrued and unpaid Yield thereon (provided that in the event that the
        amounts distributed pursuant to this clause seventh are insufficient to
        pay the Allocable Portion of the Investor Amounts, together without
        duplication for payments made under Section 10.2, with all accrued and
        unpaid Yield thereon, in full, such amounts shall be distributed to each
        Investor in accordance with such Investor's Percentage Share), and

                eighth, the balance, if any, to each Lessor Hedging Agreement
        Counterparty to pay in full all amounts then due and payable to such
        Lessor Hedging Agreement Counterparty, including any Break Costs, under
        the Lessor Hedging Agreements with respect to the Property being
        purchased (provided that to the extent that the amounts to be
        distributed to each Lessor Hedging Agreement Counterparty in accordance
        with this clause eighth are insufficient to pay all amounts then due and
        payable to such Lessor Hedging Agreement Counterparty, including any
        Break Costs, under the Lessor Hedging Agreements, such amounts shall be
        distributed to each Lessor Hedging Agreement Counterparty in accordance
        with such Lessor Hedging Agreement Counterparty's pro rata share thereof
        based on the amounts then due and owing to each Lessor Hedging Agreement
        Counterparty).

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                                                         PARTICIPATION AGREEMENT

        SECTION 10.4. Recourse Amounts; Construction Period Maximum Guaranty
Amount and Residual Value Guaranty Amount.

        (a)     Any payment on any day of either (i) the Construction Period
Maximum Guaranty Amount or the Lease Balance pursuant to the Construction Agency
Agreement, or (ii) the Residual Value Guaranty Amount or the Lease Balance
pursuant to the Lease (other than such payments distributable pursuant to
Section 10.3), shall be distributed by Administrative Agent in the following
order of priority:

                first, to the Liquidity Providers to reimburse in full the
        aggregate outstanding principal amount of the Borrowings made by the
        Liquidity Providers with respect to the A Loans (provided that to the
        extent all amounts pursuant to this clause first are insufficient to
        reimburse all principal then due and owing with respect to the A Loans
        on such day to each Liquidity Provider in full, such amounts shall be
        distributed to each Liquidity Provider in accordance with each such
        Liquidity Provider's Liquidity Provider Share; provided further that no
        payment pursuant to the first proviso of this clause first shall be made
        to a Liquidity Provider in excess of the outstanding principal amount of
        the Borrowings made by such Liquidity Provider with respect to the A
        Loans),

                second, the balance, if any, to the Liquidity Providers to,
        without duplication for payments made under clause first, reimburse in
        full the aggregate outstanding principal amount of the Borrowings made
        by the Liquidity Providers with respect to the A Loans,

                third, the balance, if any, to be deposited in the Commercial
        Paper Account of Conduit to repay in full the outstanding principal
        amount of A Loans held by Conduit,

                fourth, the balance, if any, to the Liquidity Providers to
        reimburse in full the aggregate outstanding principal amount of the
        Borrowings made by the Liquidity Providers with respect to the B Loans
        (provided that to the extent all amounts pursuant to this clause fourth
        are insufficient to reimburse all principal then due and owing with
        respect to the B Loans on such day to each Liquidity Provider in full,
        such amounts shall be distributed to each Liquidity Provider in
        accordance with each such Liquidity Provider's Liquidity Provider Share;
        provided further that no payment pursuant to the first proviso of this
        clause fourth shall be made to a Liquidity Provider in excess of the
        outstanding principal amount of the Borrowings made by such Liquidity
        Provider with respect to the B Loans),

                fifth, the balance, if any, to the Liquidity Providers to,
        without duplication for payments made under clause fourth, reimburse in
        full the aggregate outstanding principal amount of the Borrowings made
        by the Liquidity Providers with respect to the B Loans,

                sixth, the balance, if any, to be deposited in the Commercial
        Paper Account of Conduit to repay in full the outstanding principal
        amount of B Loans held by Conduit,

                seventh, the balance, if any, to be distributed to each Investor
        to pay in full the Investor Amounts (provided that in the event that the
        amounts distributed pursuant to this clause seventh are insufficient to
        pay the Investor Amounts in full, such amounts shall be distributed to
        each Investor in accordance with such Investor's Percentage Share),

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                                                         PARTICIPATION AGREEMENT

                eighth, the balance, if any, to each Lessor Hedging Agreement
        Counterparty to pay in full all amounts then due and payable to such
        Lessor Hedging Agreement Counterparty, including any Break Costs, under
        the Lessor Hedging Agreements (provided that to the extent that the
        amounts to be distributed to each Lessor Hedging Agreement Counterparty
        in accordance with this clause eighth are insufficient to pay all
        amounts then due and payable to such Lessor Hedging Agreement
        Counterparty, including any Break Costs, under the Lessor Hedging
        Agreements, such amounts shall be distributed to each Lessor Hedging
        Agreement Counterparty in accordance with such Lessor Hedging Agreement
        Counterparty's pro rata share thereof based on the amounts then due and
        owing to each Lessor Hedging Agreement Counterparty),

                ninth, the balance, if any, to be distributed to any Person
        entitled thereto as payment of any outstanding and unpaid obligation of
        Lessee under the Operative Documents, and

                tenth, the balance, if any, to be distributed to Lessee.

        (b)     In the event that Section 10.4(a) shall not apply, any payment
on any day of either (i) the Traville Construction Period Maximum Guaranty
Amount, the Manufacturing Construction Period Maximum Guaranty Amount, the
Traville Lease Balance or the Manufacturing Lease Balance pursuant to the
Construction Agency Agreement, or (ii) the Traville Residual Value Guaranty
Amount, the Manufacturing Residual Value Guaranty Amount, the Traville Lease
Balance or the Manufacturing Lease Balance pursuant to the Lease (other than
payments distributable pursuant to Section 10.3), shall be distributed by
Administrative Agent in the following order of priority:

                first, to the Liquidity Providers to reimburse in full the
        Allocable Portion aggregate outstanding principal amount of the
        Borrowings made by the Liquidity Providers with respect to the A Loans
        (provided that to the extent all amounts pursuant to this clause first
        are insufficient to reimburse the Allocable Portion of the principal
        then due and owing with respect to the A Loans on such day to each
        Liquidity Provider in full, such amounts shall be distributed to each
        Liquidity Provider in accordance with each such Liquidity Provider's
        Liquidity Provider Share; provided further that no payment pursuant to
        the first proviso of this clause first shall be made to a Liquidity
        Provider in excess of the Allocable Portion of the outstanding principal
        amount of the Borrowings made by such Liquidity Provider with respect to
        the A Loans),

                second, the balance, if any, to the Liquidity Providers to,
        without duplication for payments made under clause first, reimburse in
        full the Allocable Portion of the aggregate outstanding principal amount
        of the Borrowings made by the Liquidity Providers with respect to the A
        Loans,

                third, the balance, if any, to be deposited in the Commercial
        Paper Account of Conduit to repay in full the Allocable Portion of the
        outstanding principal amount of A Loans held by Conduit,

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                                                         PARTICIPATION AGREEMENT

                fourth, the balance, if any, to the Liquidity Providers to
        reimburse in full the Allocable Portion of the aggregate outstanding
        principal amount of the Borrowings made by the Liquidity Providers with
        respect to the B Loans (provided that to the extent all amounts pursuant
        to this clause fourth are insufficient to reimburse the Allocable
        Portion of the principal then due and owing with respect to the B Loans
        on such day to each Liquidity Provider in full, such amounts shall be
        distributed to each Liquidity Provider in accordance with each such
        Liquidity Provider's Liquidity Provider Share; provided further that no
        payment pursuant to the first proviso of this clause fourth shall be
        made to a Liquidity Provider in excess of the Allocable Portion of the
        outstanding principal amount of the Borrowings made by such Liquidity
        Provider with respect to the B Loans),

                fifth, the balance, if any, to the Liquidity Providers to,
        without duplication for payments made under clause fourth, reimburse in
        full the Allocable Portion of the aggregate outstanding principal amount
        of the Borrowings made by the Liquidity Providers with respect to the B
        Loans,

                sixth, the balance, if any, to be deposited in the Commercial
        Paper Account of Conduit to repay in full the Allocable Portion of the
        outstanding principal amount of B Loans held by Conduit,

                seventh, the balance, if any, to be distributed to each Investor
        to pay in full the Allocable Portion of the Investor Amounts (provided
        that in the event that the amounts distributed pursuant to this clause
        seventh are insufficient to pay the Allocable Portion of the Investor
        Amounts in full, such amounts shall be distributed to each Investor in
        accordance with such Investor's Percentage Share),

                eighth, the balance, if any, to each Lessor Hedging Agreement
        Counterparty to pay in full all amounts then due and payable to such
        Lessor Hedging Agreement Counterparty, including any Break Costs, under
        the Lessor Hedging Agreements with respect to the applicable Property
        (provided that to the extent that the amounts to be distributed to each
        Lessor Hedging Agreement Counterparty in accordance with this clause
        eighth are insufficient to pay all amounts then due and payable to such
        Lessor Hedging Agreement Counterparty, including any Break Costs, under
        the Lessor Hedging Agreements, such amounts shall be distributed to each
        Lessor Hedging Agreement Counterparty in accordance with such Lessor
        Hedging Agreement Counterparty's pro rata share thereof based on the
        amounts then due and owing to each Lessor Hedging Agreement
        Counterparty),

                ninth, the balance, if any, to be distributed to any Person
        entitled thereto as payment of any outstanding and unpaid obligation of
        Lessee under the Operative Documents, and

                tenth, the balance, if any, to be distributed to Lessee.

        SECTION 10.5. Gross Sale Proceeds.

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                                                         PARTICIPATION AGREEMENT

        (a)     Any payments received by Administrative Agent as Gross Sale
Proceeds from the sale of both of the Properties pursuant to the Remarketing
Option shall be distributed by Administrative Agent in the following order of
priority:

                first, so much of such payment or amount as shall be required to
        reimburse Lessee, Lessor, the Agents, the Administrator and any other
        Participant for any Remarketing Sale Expenses incurred by such Person in
        connection with such disposition and approved in advance by the
        Investors,

                second, the balance, if any, to the extent actually paid on or
        prior to the date of such distribution shall be distributed:

                (i)     first, to the Liquidity Providers to reimburse in full
                        the aggregate outstanding principal amount of the
                        Borrowings made by the Liquidity Providers with respect
                        to the B Loans (provided that to the extent all amounts
                        pursuant to this clause second (i) are insufficient to
                        reimburse all principal then due and owing with respect
                        to the B Loans on such day to each Liquidity Provider in
                        full, such amounts shall be distributed to each
                        Liquidity Provider in accordance with each such
                        Liquidity Provider's Liquidity Provider Share; provided
                        further that no payment pursuant to the first proviso of
                        this clause second (i) shall be made to a Liquidity
                        Provider in excess of the outstanding principal amount
                        of the Borrowings made by such Liquidity Provider with
                        respect to the B Loans),

                (ii)    second, to the Liquidity Providers to, without
                        duplication for payments made under clause second (i),
                        reimburse in full the aggregate outstanding principal
                        amount of the Borrowings made by the Liquidity Providers
                        with respect to the B Loans,

                (iii)   third, the balance, if any, to be deposited in the
                        Commercial Paper Account of Conduit to repay in full the
                        outstanding principal amount of all remaining B Loans,

                (iv)    fourth, the balance, if any, to the Liquidity Providers
                        to reimburse in full the aggregate outstanding principal
                        amount of the Borrowings made by the Liquidity Providers
                        with respect to the A Loans (provided that to the extent
                        all amounts pursuant to this clause second (iv) are
                        insufficient to reimburse all principal then due and
                        owing with respect to the A Loans on such day to each
                        Liquidity Provider in full, such amounts shall be
                        distributed to each Liquidity Provider in accordance
                        with each such Liquidity Provider's Liquidity Provider
                        Share; provided further that no payment pursuant to the
                        first proviso of this clause second (iv) shall be made
                        to a Liquidity Provider in excess of the outstanding
                        principal amount of the Borrowings made by such
                        Liquidity Provider with respect to the A Loans),

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                                                         PARTICIPATION AGREEMENT

                (v)     fifth, the balance, if any, to the Liquidity Providers
                        to, without duplication for payments made under clause
                        second (iv), reimburse in full the aggregate outstanding
                        principal amount of the Borrowings made by the Liquidity
                        Providers with respect to the A Loans,

                (vi)    sixth, the balance, if any, to be deposited in the
                        Commercial Paper Account of Conduit to repay in full the
                        outstanding principal amount of all remaining A Loans,

                (vii)   seventh, the balance, if any, to be distributed to each
                        Investor to pay in full the Investor Amounts (provided
                        that in the event that the amounts distributed pursuant
                        to this clause second (vii) are insufficient to pay the
                        Investor Amounts in full, such amounts shall be
                        distributed to each Investor in accordance with such
                        Investor's Percentage Share),

                (viii)  eighth, the balance, if any, to each Lessor Hedging
                        Agreement Counterparty to pay in full all amounts then
                        due and payable to such Lessor Hedging Agreement
                        Counterparty, including any Break Costs, under the
                        Lessor Hedging Agreements (provided that to the extent
                        that the amounts to be distributed to each Lessor
                        Hedging Agreement Counterparty in accordance with this
                        clause second (viii) are insufficient to pay all amounts
                        then due and payable to such Lessor Hedging Agreement
                        Counterparty, including any Break Costs, under the
                        Lessor Hedging Agreements, such amounts shall be
                        distributed to each Lessor Hedging Agreement
                        Counterparty in accordance with such Lessor Hedging
                        Agreement Counterparty's pro rata share thereof based on
                        the amounts then due and owing to each Lessor Hedging
                        Agreement Counterparty), and

                third, the balance, if any, shall be distributed to Lessee to
        the extent permitted by Section 10.11.

        (b)     Any payments received by Administrative Agent as Gross Sale
Proceeds from the sale of one but not both of the Properties pursuant to the
Remarketing Option shall be distributed by Administrative Agent in the following
order of priority:

                first, so much of such payment or amount as shall be required to
        reimburse Lessee, Lessor, the Agents, the Administrator and any other
        Participant for any Remarketing Sale Expenses incurred by such Person in
        connection with such disposition and approved in advance by the
        Investors,

                second, the balance, if any, to the extent actually paid on or
        prior to the date of such distribution shall be distributed:

                (i)     first, to the Liquidity Providers to reimburse in full
                        the Allocable Portion of the aggregate outstanding
                        principal amount of the Borrowings made by the Liquidity
                        Providers with respect to the B Loans (provided that to
                        the extent all amounts pursuant to this clause second
                        (i) are insufficient to

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                                                         PARTICIPATION AGREEMENT

                        reimburse the Allocable Portion of the principal then
                        due and owing with respect to the B Loans on such day to
                        each Liquidity Provider in full, such amounts shall be
                        distributed to each Liquidity Provider in accordance
                        with each such Liquidity Provider's Liquidity Provider
                        Share; provided further that no payment pursuant to the
                        first proviso of this clause second (i) shall be made to
                        a Liquidity Provider in excess of the Allocable Portion
                        of the outstanding principal amount of the Borrowings
                        made by such Liquidity Provider with respect to the B
                        Loans),

                (ii)    second, to the Liquidity Providers to, without
                        duplication for payments made under clause second (i),
                        reimburse in full the Allocable Portion of the aggregate
                        outstanding principal amount of the Borrowings made by
                        the Liquidity Providers with respect to the B Loans,

                (iii)   third, the balance, if any, to be deposited in the
                        Commercial Paper Account of Conduit to repay in full the
                        Allocable Portion of the outstanding principal amount of
                        all remaining B Loans,

                (iv)    fourth, the balance, if any, to the Liquidity Providers
                        to reimburse in full the Allocable Portion of the
                        aggregate outstanding principal amount of the Borrowings
                        made by the Liquidity Providers with respect to the A
                        Loans (provided that to the extent all amounts pursuant
                        to this clause second (iv) are insufficient to reimburse
                        the Allocable Portion of the principal then due and
                        owing with respect to the A Loans on such day to each
                        Liquidity Provider in full, such amounts shall be
                        distributed to each Liquidity Provider in accordance
                        with each such Liquidity Provider's Liquidity Provider
                        Share; provided further that no payment pursuant to the
                        first proviso of this clause second (iv) shall be made
                        to a Liquidity Provider in excess of the Allocable
                        Portion of the outstanding principal amount of the
                        Borrowings made by such Liquidity Provider with respect
                        to the A Loans),

                (v)     fifth, the balance, if any, to the Liquidity Providers
                        to, without duplication for payments made under clause
                        second (iv), reimburse in full the Allocable Portion of
                        the aggregate outstanding principal amount of the
                        Borrowings made by the Liquidity Providers with respect
                        to the A Loans,

                (vi)    sixth, the balance, if any, to be deposited in the
                        Commercial Paper Account of Conduit to repay in full the
                        Allocable Portion of the outstanding principal amount of
                        all remaining A Loans,

                (vii)   seventh, the balance, if any, to be distributed to each
                        Investor to pay in full the Allocable Portion of the
                        Investor Amounts (provided that in the event that the
                        amounts distributed pursuant to this clause second (vii)
                        are insufficient to pay the Allocable Portion of the
                        Investor Amounts in full, such amounts shall be
                        distributed to each Investor in accordance with such
                        Investor's Percentage Share),

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                                                         PARTICIPATION AGREEMENT

                (viii)  eighth, the balance, if any, to each Lessor Hedging
                        Agreement Counterparty to pay in full all amounts then
                        due and payable to such Lessor Hedging Agreement
                        Counterparty, including any Break Costs, under the
                        Lessor Hedging Agreements with respect to the Property
                        being sold (provided that to the extent that the amounts
                        to be distributed to each Lessor Hedging Agreement
                        Counterparty in accordance with this clause second
                        (viii) are insufficient to pay all amounts then due and
                        payable to such Lessor Hedging Agreement Counterparty,
                        including any Break Costs, under the Lessor Hedging
                        Agreements, such amounts shall be distributed to each
                        Lessor Hedging Agreement Counterparty in accordance with
                        such Lessor Hedging Agreement Counterparty's pro rata
                        share thereof based on the amounts then due and owing to
                        each Lessor Hedging Agreement Counterparty), and

                third, the balance, if any, shall be distributed to Lessee to
        the extent permitted by Section 10.11.

        SECTION 10.6. Supplemental Rent. Any payment of Supplemental Rent
received by Administrative Agent for which no provision as to the application
thereof is made elsewhere in this Article X shall be distributed immediately by
Administrative Agent upon receipt thereof to the Persons entitled thereto
pursuant to the Operative Documents or Lessor Hedging Agreements.

        SECTION 10.7. Excluded Amounts. Notwithstanding any other provision of
this Participation Agreement or the Operative Documents, any Excluded Amounts
received at any time by any Agent or any Participant shall be distributed
promptly to the Person entitled to receive such Excluded Amount pursuant to the
Operative Documents.

        SECTION 10.8. Distribution of Payments After Construction Agency Event
of Default or Lease Event of Default. Notwithstanding any other provision of
this Article X, all payments (other than amounts distributable pursuant to
Section 10.6 or 10.7) received and amounts realized by Lessee, a Collateral
Agent, Administrative Agent, Conduit, or Lessor after a Construction Agency
Event of Default or Lease Event of Default has occurred and is continuing,
including Base Rent and Gross Sale Proceeds from the sale of any of the
Properties or other collateral, proceeds of any amounts from any insurer or any
Authority in connection with any loss, Casualty or Condemnation, shall be
immediately paid to Administrative Agent and shall be immediately distributed by
Administrative Agent, as follows:

        (a)     Receipt of Lease Balance; Proceeds from Certain Collateral. If,
on any date after a Construction Agency Event of Default that is a Full Recourse
Event of Default has occurred and is continuing, Lessee makes a payment of (A)
all or a portion of the Lease Balance or (B) a payment is made of any other
amount, including proceeds from the sale of Collateral (other than Liquid
Collateral), then, with respect to amounts described in clause (A), such amount
shall be or shall have been distributed in accordance with Section 10.4, and
with respect to amounts described in clause (B), then distributions of such
amounts shall be in the following order of priority:

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                first, so much of such payment or amount as shall be required to
        reimburse the Collateral Agents, Administrative Agent, the Trust
        Company, the Trustee, Investors, Conduit, the Liquidity Providers or
        Lessor for any taxes, expenses, fees, indemnities or other losses
        incurred by the Collateral Agents, Administrative Agent, Investors,
        Conduit, the Liquidity Providers or Lessor under the Operative Documents
        or in connection with the collection of such amounts (to the extent not
        previously reimbursed) shall be distributed to the Collateral Agents,
        Administrative Agent, Investors, Conduit, the Liquidity Providers, or
        Lessor, as applicable (to be divided among such parties pro rata to the
        extent insufficient to satisfy all claims),

                second, the balance, if any, to the extent actually paid on or
        prior to the date of such distribution shall be distributed:

                (i)     first, to the Liquidity Providers to reimburse in full
                        the aggregate outstanding principal amount of the
                        Borrowings made by the Liquidity Providers with respect
                        to the B Loans (provided that to the extent all amounts
                        pursuant to this clause second (i) are insufficient to
                        reimburse all principal then due and owing with respect
                        to the B Loans on such day to each Liquidity Provider in
                        full, such amounts shall be distributed to each
                        Liquidity Provider in accordance with each such
                        Liquidity Provider's Liquidity Provider Share; provided
                        further that no payment pursuant to the first proviso of
                        this clause second (i) shall be made to a Liquidity
                        Provider in excess of the outstanding principal amount
                        of the Borrowings made by such Liquidity Provider with
                        respect to the B Loans),

                (ii)    second, to the Liquidity Providers to, without
                        duplication for payments made under clause second (i),
                        reimburse in full the aggregate outstanding principal
                        amount of the Borrowings made by the Liquidity Providers
                        with respect to the B Loans,

                (iii)   third, the balance, if any, to be deposited in the
                        Commercial Paper Account of Conduit to repay in full the
                        outstanding principal amount of all remaining B Loans,

                (iv)    fourth, the balance, if any, to the Liquidity Providers
                        to reimburse in full the aggregate outstanding principal
                        amount of the Borrowings made by the Liquidity Providers
                        with respect to the A Loans (provided that to the extent
                        all amounts pursuant to this clause second (iv) are
                        insufficient to reimburse all principal then due and
                        owing with respect to the A Loans on such day to each
                        Liquidity Provider in full, such amounts shall be
                        distributed to each Liquidity Provider in accordance
                        with each such Liquidity Provider's Liquidity Provider
                        Share; provided further that no payment pursuant to the
                        first proviso of this clause second (iv) shall be made
                        to a Liquidity Provider in excess of the outstanding
                        principal amount of the Borrowings made by such
                        Liquidity Provider with respect to the A Loans),

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                                                         PARTICIPATION AGREEMENT

                (v)     fifth, the balance, if any, to the Liquidity Providers
                        to, without duplication for payments made under clause
                        second (iv), reimburse in full the aggregate outstanding
                        principal amount of the Borrowings made by the Liquidity
                        Providers with respect to the A Loans,

                (vi)    sixth, the balance, if any, to be deposited in the
                        Commercial Paper Account of Conduit to repay in full the
                        outstanding principal amount of all remaining A Loans,

                (vii)   seventh, the balance, if any, to be distributed to each
                        Investor to pay in full the Investor Amounts (provided
                        that in the event that the amounts distributed pursuant
                        to this clause second (vii) are insufficient to pay the
                        Investor Amounts in full, such amounts shall be
                        distributed to each Investor in accordance with such
                        Investor's Percentage Share),

                (viii)  eighth, the balance, if any, to each Lessor Hedging
                        Agreement Counterparty to pay in full all amounts then
                        due and payable to such Lessor Hedging Agreement
                        Counterparty, including any Break Costs, under the
                        Lessor Hedging Agreements (provided that to the extent
                        that the amounts to be distributed to each Lessor
                        Hedging Agreement Counterparty in accordance with this
                        clause second (viii) are insufficient to pay all amounts
                        then due and payable to such Lessor Hedging Agreement
                        Counterparty, including any Break Costs, under the
                        Lessor Hedging Agreements, such amounts shall be
                        distributed to each Lessor Hedging Agreement
                        Counterparty in accordance with such Lessor Hedging
                        Agreement Counterparty's pro rata share thereof based on
                        the amounts then due and owing to each Lessor Hedging
                        Agreement Counterparty), and

                third, the balance, if any, shall be distributed to Lessee to
        the extent permitted by Section 10.11.

        (b)     Receipt of Construction Period Maximum Guaranty Amount, Proceeds
from Certain Collateral. If, on any date after a Construction Agency Event of
Default that is not a Full Recourse Event of Default or Lease Event of Default
has occurred and is continuing, (A) Lessee makes a payment all or a portion of
the Construction Period Maximum Guaranty Amount or (B) any proceeds from the
application or sale of Collateral (other than Liquid Collateral), then, with
respect to amounts described in clause (A), such amount shall be or shall have
been distributed in accordance with Section 10.4, and with respect to amounts
described in clause (B), then distributions of such amounts shall be in the
following order of priority:

                first, so much of such payment or amount as shall be required to
        reimburse the Collateral Agents, Administrative Agent, the Trust
        Company, the Trustee, Investors, Conduit, the Liquidity Providers, or
        Lessor for any taxes, expenses, fees, indemnities or other losses
        incurred by the Collateral Agents, Administrative Agent, Conduit, the
        Liquidity Providers or Lessor under the Operative Documents or in
        connection with the collection of such amounts (to the extent not
        previously reimbursed) shall be distributed

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                                                         PARTICIPATION AGREEMENT

        to the Collateral Agents, Administrative Agent, Investors, Conduit, the
        Liquidity Providers or Lessor, as applicable (to be divided among such
        parties pro rata to the extent insufficient to satisfy all claims),

                second, the balance, if any, shall be distributed:

                (i)     first, to the Liquidity Providers to reimburse in full
                        the aggregate outstanding principal amount of the
                        Borrowings made by the Liquidity Providers with respect
                        to the B Loans (provided that to the extent all amounts
                        pursuant to this clause second (i) are insufficient to
                        reimburse all principal then due and owing with respect
                        to the B Loans on such day to each Liquidity Provider in
                        full, such amounts shall be distributed to each
                        Liquidity Provider in accordance with each such
                        Liquidity Provider's Liquidity Provider Share; provided
                        further that no payment pursuant to the first proviso of
                        this clause second (i) shall be made to a Liquidity
                        Provider in excess of the outstanding principal amount
                        of the Borrowings made by such Liquidity Provider with
                        respect to the B Loans),

                (ii)    second, to the Liquidity Providers to, without
                        duplication for payments made under clause second (i),
                        reimburse in full the aggregate outstanding principal
                        amount of the Borrowings made by the Liquidity Providers
                        with respect to the B Loans,

                (iii)   third, the balance, if any, to be deposited in the
                        Commercial Paper Account of Conduit to repay in full the
                        outstanding principal amount of all remaining B Loans,

                (iv)    fourth, the balance, if any, to the Liquidity Providers
                        to reimburse in full the aggregate outstanding principal
                        amount of the Borrowings made by the Liquidity Providers
                        with respect to the A Loans (provided that to the extent
                        all amounts pursuant to this clause second (iv) are
                        insufficient to reimburse all principal then due and
                        owing with respect to the A Loans on such day to each
                        Liquidity Provider in full, such amounts shall be
                        distributed to each Liquidity Provider in accordance
                        with each such Liquidity Provider's Liquidity Provider
                        Share; provided further that no payment pursuant to the
                        first proviso of this clause second (iv) shall be made
                        to a Liquidity Provider in excess of the outstanding
                        principal amount of the Borrowings made by such
                        Liquidity Provider with respect to the A Loans),

                (v)     fifth, the balance, if any, to the Liquidity Providers
                        to, without duplication for payments made under clause
                        second (iv), reimburse in full the aggregate outstanding
                        principal amount of the Borrowings made by the Liquidity
                        Providers with respect to the A Loans,

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                                                         PARTICIPATION AGREEMENT

                (vi)    sixth, the balance, if any, to be deposited in the
                        Commercial Paper Account of Conduit to repay in full the
                        outstanding principal amount of all remaining A Loans,

                (vii)   seventh, the balance, if any, to be distributed to each
                        Investor to pay in full the Investor Amounts (provided
                        that in the event that the amounts distributed pursuant
                        to this clause second (vii) are insufficient to pay the
                        Investor Amounts in full, such amounts shall be
                        distributed to each Investor in accordance with such
                        Investor's Percentage Share),

                (viii)  eighth, the balance, if any, to each Lessor Hedging
                        Agreement Counterparty to pay in full all amounts then
                        due and payable to such Lessor Hedging Agreement
                        Counterparty, including any Break Costs, under the
                        Lessor Hedging Agreements (provided that to the extent
                        that the amounts to be distributed to each Lessor
                        Hedging Agreement Counterparty in accordance with this
                        clause second (viii) are insufficient to pay all amounts
                        then due and payable to such Lessor Hedging Agreement
                        Counterparty, including any Break Costs, under the
                        Lessor Hedging Agreements, such amounts shall be
                        distributed to each Lessor Hedging Agreement
                        Counterparty in accordance with such Lessor Hedging
                        Agreement Counterparty's pro rata share thereof based on
                        the amounts then due and owing to each Lessor Hedging
                        Agreement Counterparty), and

                third, the balance, if any, shall be distributed to Lessee or to
        such other Person as shall be legally entitled thereto.

        (c)     Receipt of Proceeds of Fleet National Bank Liquid Collateral.
If, on any date after a Construction Agency Event of Default or Lease Event of
Default has occurred and is continuing, a payment is made from any proceeds from
the application or sale of any Fleet National Bank Liquid Collateral, then such
amount shall be distributed as follows:

                first, so much of such payment or amount as shall be required to
        reimburse the Fleet National Bank Collateral Agent, Fleet, Eagle, the
        Fleet National Bank Custodian, the Fleet Liquidity Provider or any other
        Fleet Indemnitee for any taxes, expenses, fees, indemnities or other
        losses incurred by the Fleet National Bank Collateral Agent, Fleet,
        Eagle, the Fleet National Bank Custodian, the Fleet Liquidity Provider
        or any other Fleet Indemnitee under the Operative Documents or in
        connection with the collection of such amounts (to the extent not
        previously reimbursed) shall be distributed to the Fleet National Bank
        Collateral Agent, Fleet, Eagle, the Fleet National Bank Custodian, the
        Fleet Liquidity Provider or any other Fleet Indemnitee, as applicable
        (to be divided among such parties pro rata to the extent insufficient to
        satisfy all claims),

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                                                         PARTICIPATION AGREEMENT

                second, the balance, if any, shall be distributed:

                (i)     first, to the Fleet Liquidity Provider to reimburse in
                        full the outstanding principal amount of the Borrowings
                        made by the Fleet Liquidity Providers with respect to
                        the A Loans, together with all accrued interest thereon,

                (ii)    second, the balance, if any, to be deposited in the
                        Commercial Paper Account of Eagle to repay in full the
                        Fleet Liquidity Provider's Liquidity Provider Share of
                        the outstanding principal amount of all remaining A
                        Loans of Eagle, together with accrued interest thereon,

                (iii)   third, to the Fleet Liquidity Provider to reimburse in
                        full the outstanding principal amount of the Borrowings
                        made by the Fleet Liquidity Providers with respect to
                        the B Loans, together with all accrued interest thereon,

                (iv)    fourth, the balance, if any, to be deposited in the
                        Commercial Paper Account of Eagle to repay in full the
                        Fleet Liquidity Provider's Liquidity Provider Share of
                        the outstanding principal amount of all remaining B
                        Loans of Eagle, together with accrued interest thereon,

                (v)     fifth, the balance, if any, to be distributed to the
                        Fleet Investor to pay in full the Investor Amounts of
                        the Fleet Investor, together with accrued Yield thereon,

                third, the balance, if any to be distributed in accordance with
        clauses first and second of Section 10.8(d),

                fourth, the balance, if any, to each Lessor Hedging Agreement
        Counterparty to pay in full all amounts then due and payable to such
        Lessor Hedging Agreement Counterparty, including any Break Costs, under
        the Lessor Hedging Agreements (provided that to the extent that the
        amounts to be distributed to each Lessor Hedging Agreement Counterparty
        in accordance with this clause fourth are insufficient to pay all
        amounts then due and payable to such Lessor Hedging Agreement
        Counterparty, including any Break Costs, under the Lessor Hedging
        Agreements, such amounts shall be distributed to each Lessor Hedging
        Agreement Counterparty in accordance with such Lessor Hedging Agreement
        Counterparty's pro rata share thereof based on the amounts then due and
        owing to each Lessor Hedging Agreement Counterparty), and

                fifth, the balance, if any, shall be distributed to Lessee or to
        such other Person as shall be legally entitled thereto.

        (d)     Receipt of Proceeds of First Union Liquid Collateral. If, on any
date after a Construction Agency Event of Default or Lease Event of Default has
occurred and is continuing, a payment is made from any proceeds from the
application or sale of any First Union Liquid Collateral, then such amount shall
be distributed as follows:

                first, so much of such payment or amount as shall be required to
        reimburse the First Union Collateral Agent, First Union, the First Union
        Custodian, the First Union

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                                                         PARTICIPATION AGREEMENT

        Liquidity Provider or any other First Union Indemnitee for any taxes,
        expenses, fees, indemnities or other losses incurred by the First Union
        Collateral Agent, First Union, the First Union Custodian, the First
        Union Liquidity Provider or any other First Union Indemnitee under the
        Operative Documents or in connection with the collection of such amounts
        (to the extent not previously reimbursed) shall be distributed to the
        First Union Collateral Agent, First Union, the First Union Custodian,
        the First Union Liquidity Provider or any other First Union Indemnitee,
        as applicable (to be divided among such parties pro rata to the extent
        insufficient to satisfy all claims),

                second, the balance, if any, shall be distributed:

                (i)     first, to the First Union Liquidity Provider to
                        reimburse in full the outstanding principal amount of
                        the Borrowings made by the First Union Liquidity
                        Providers with respect to the A Loans, together with all
                        accrued interest thereon,

                (ii)    second, the balance, if any, to be deposited in the
                        Commercial Paper Account of Eagle to repay in full the
                        First Union Liquidity Provider's Liquidity Provider
                        Share of the outstanding principal amount of all
                        remaining A Loans of Eagle, together with accrued
                        interest thereon,

                (iii)   third, to the First Union Liquidity Provider to
                        reimburse in full the outstanding principal amount of
                        the Borrowings made by the First Union Liquidity
                        Providers with respect to the B Loans, together with all
                        accrued interest thereon,

                (iv)    fourth, the balance, if any, to be deposited in the
                        Commercial Paper Account of Eagle to repay in full the
                        First Union Liquidity Provider's Liquidity Provider
                        Share of the outstanding principal amount of all
                        remaining B Loans of Eagle, together with accrued
                        interest thereon,

                (v)     fifth, the balance, if any, to be distributed to the
                        First Union Investor to pay in full the Investor Amounts
                        of the First Union Investor, together with accrued Yield
                        thereon,

                third, the balance, if any to be distributed in accordance with
        clauses first and second of Section 10.8(c),

                fourth, the balance, if any, to each Lessor Hedging Agreement
        Counterparty to pay in full all amounts then due and payable to such
        Lessor Hedging Agreement Counterparty, including any Break Costs, under
        the Lessor Hedging Agreements (provided that to the extent that the
        amounts to be distributed to each Lessor Hedging Agreement Counterparty
        in accordance with this clause fourth are insufficient to pay all
        amounts then due and payable to such Lessor Hedging Agreement
        Counterparty, including any Break Costs, under the Lessor Hedging
        Agreements, such amounts shall be distributed to each Lessor Hedging
        Agreement Counterparty in accordance with such Lessor Hedging Agreement
        Counterparty's pro rata share thereof based on the amounts then due and
        owing to each Lessor Hedging Agreement Counterparty), and

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                                                         PARTICIPATION AGREEMENT

                fifth, the balance, if any, shall be distributed to Lessee or to
        such other Person as shall be legally entitled thereto.

        SECTION 10.9. Other Payments.

        (a)     Except as otherwise provided in Sections 10.2, 10.3, 10.8 and
clause (b) or (c) below,

                (i)     any payment received by Administrative Agent for which
        no provision as to the application thereof is made in the Operative
        Documents or elsewhere in this Article X, and

                (ii)    all payments and amounts received by the Agents under
        the Lease or otherwise with respect to the Collateral,

shall be distributed forthwith by Administrative Agent in the order of priority
set forth in Section 10.3(a) (in the case of any payment described in clause (i)
above) or in Section 10.8(b) hereof (in the case of any payment described in
clause (ii) above).

        (b)     Except as otherwise provided in Sections 10.2, 10.3 and 10.8
hereof and except after a Lease Event of Default has occurred and is continuing,
any payment received by Administrative Agent for which provision as to the
application thereof is made in an Operative Document but not elsewhere in this
Article X shall be distributed forthwith by the Agents to the Person and for the
purpose for which such payment was made in accordance with the terms of such
Operative Document.

        (c)     Except as provided in Section 10.8 hereof, any payment received
by Administrative Agent representing amounts paid to Lessor pursuant to Section
14.2(b) or 14.4(b) of the Lease shall be distributed forthwith by Administrative
Agent in the order of priority set forth in Section 10.4(b) hereof.

        (d)     Any payment received by Administrative Agent in respect of
Construction Period Accrued Interest, Construction Period Accrued Yield or
Construction Period Fees shall be distributed forthwith by Administrative Agent
to the Participant entitled thereto in accordance with Section 2.2.9.

        SECTION 10.10. Order of Application. To the extent any payment made to
any Liquidity Provider or Investor pursuant to Section 10.3 or 10.8 is
insufficient to pay in full the Loans or the Investor Amount, as the case may
be, of such Person, then each such payment shall first be applied to overdue
interest, then to accrued interest or Yield and then to principal or Investor
Amount, as applicable.

        SECTION 10.11. Remaining Funds. Upon the termination or expiration of
the Commitments and all Lessor Hedging Agreements and the payment in full of (i)
the Conduit Loans, the Facility Loans, the Commercial Paper Notes, the Investor
Amounts and all accrued and unpaid interest and Yield, (ii) all amounts,
including Break Cost, payable under the Lessor Hedging Agreements and (iii) all
other amounts due and owing by Lessee to any Person under the Operative
Documents, all remaining moneys held by Administrative Agent shall be paid to

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                                                         PARTICIPATION AGREEMENT

Lessee, and Lessee shall not be entitled to receive any amounts from the
Accounts until such time, except as expressly provided in this Article X.

        SECTION 10.12. Time of Payment. Except as otherwise provided in the
Operative Documents, each payment due from Lessee under the Operative Documents
shall be made in immediately available funds prior to 1:00 p.m. (New York time)
on the date when due in immediately available funds consisting of lawful
currency of the United States of America, unless such date shall not be a
Business Day, in which case payment shall be made on the next following Business
Day (unless such next following Business Day is the first Business Day of a
calendar month, in which case such payment shall be made on the Business Day
next preceding such numerically corresponding day). Except as otherwise provided
in the Operative Documents, payments received after 1:00 p.m. (New York time)
shall be deemed received on the next succeeding Business Day.

                                   ARTICLE XI

             LESSEE DIRECTIONS; RECOURSE DURING CONSTRUCTION PERIOD

        SECTION 11.1. Lessee Directions. Notwithstanding anything to the
contrary contained in the Operative Documents, Lessor and the Participants agree
that, so long as no Event of Default has occurred and is continuing which has
caused the acceleration of the maturity of the Loans and the termination of the
Commitments:

        (a)     Lessee shall have the right to give all borrowing notices and
prepayment notices pursuant to the Loan Agreement; and

        (b)     Lessee shall have the right to replace an Investor or a
Liquidity Provider pursuant to Section 8.3 or a Liquidity Provider pursuant to
the Liquidity Agreement.

        SECTION 11.2. Recourse on Liability During Construction Period.
Notwithstanding any other provision set forth in this Participation Agreement or
any of the other Operative Documents, in the event of the occurrence of a
Construction Agency Event of Default, Lessee and Construction Agent shall not be
required to pay (either directly or by virtue of the execution of the security
interest in the Liquid Collateral) with respect to the Lease Balance more than
the Construction Period Maximum Guaranty Amount on a recourse basis with respect
to any damages (which shall include Construction Breakage Costs and amounts
payable by Construction Agent as Default Completion Costs) which arise from such
Construction Agency Event of Default; provided, however, that the foregoing
limitation shall not apply to (i) any Full Recourse Event of Default (in which
event Construction Agent shall be required to pay the Lease Balance and all
other sums then due and payable on a recourse basis), (ii) the rights of parties
to seek payment of all amounts (other than the payment of all or any portion of
the Lease Balance) due and owing under the Operative Documents, without regard
to such limitation, from the proceeds of the Collateral or (iii) any Claim for
indemnity covered by Article IX or under any other Operative Document.

        SECTION 11.3. Notice to Administrative Agent. Lessee shall give notice
to Administrative Agent upon the occurrence of any of the following:

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                                                         PARTICIPATION AGREEMENT

        (a)     Lessee shall give written notice to Administrative Agent,
concurrently with making a payment of Base Rent or any Supplemental Rent to
Administrative Agent. Such notice shall be substantially in the form of Exhibit
D hereto and shall specify the amount of the payment that is being made for each
of the (a) Conduit Base Rent, (b) Investor Base Rent, and/or (c) Supplemental
Rent.

        (b)     If Lessee shall exercise its Purchase Option under Section
2.5(a)(ix) or 5.1.2 of the Construction Agency Agreement, Lessee shall give
Administrative Agent written notice concurrent with the notice due to Lessor
pursuant to Section 5.1(b) of the Lease. Such notice shall provide the amount of
Lease Balance, Traville Lease Balance, or Manufacturing Lease Balance, as
applicable, and all other amounts owing in respect of Rent, including
Supplemental Rent, separately identifying any amounts representing payments
under the Lessor Hedging Agreements accruing through the Purchase Date.

        (c)     If Lessee shall exercise its Purchase Option under Section 5.1.2
of the Construction Agency Agreement, Lessee shall give Administrative Agent
written notice concurrent with the notice due to Lessor under the Construction
Agency Agreement of such exercise. Such notice shall provide the amount to be
paid by Lessee pursuant to Section 5.1.2(ii) or Section 2.5(a)(ix) of the
Construction Agency Agreement.

        (d)     Lessee (in its capacity as Construction Agent) shall give
Administrative Agent notice concurrently with the payment of any portion of the
Construction Period Maximum Guaranty Amount or Lease Balance pursuant to Section
5.1.2 of the Construction Agency Agreement. Any such notice shall contain both
the amount and the computation of such Construction Period Maximum Guaranty
Amount or Lease Balance.

        (e)     Lessee shall give Administrative Agent notice concurrently with
the payment of any portion of Residual Value Guaranty Amount (and all other
amounts due and owing in respect to Rent (including Supplemental Rent) pursuant
to the Section 7.1(e) of the Lease. Any such notice shall contain both the
amount and the computation of such Residual Value Guaranty Amount.

        (f)     If Lessee shall exercise its Remarketing Option under Section
7.1 of the Lease, Lessee shall give Administrative Agent notice concurrent with
the notice due to Lessor pursuant to Section 7.1 of the Lease. In addition,
Lessee shall give Administrative Agent two (2) Business Days' notice prior to
the Sale Date, setting forth the amount to be paid to Administrative Agent
pursuant to Section 7.1(c) of the Lease.

                                   ARTICLE XII

                                  MISCELLANEOUS

        SECTION 12.1. Survival of Agreements. All representations, warranties,
covenants, indemnities and agreements of the parties provided for in the
Operative Documents (including, without limitation, the indemnities set forth in
Article IX), and the obligations of the parties under any and all thereof, shall
survive the execution and delivery and the termination or expiration of the
Lease and any of the other Operative Documents, the transfer of the Properties

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                                                         PARTICIPATION AGREEMENT

or any portion thereof as provided herein or in any of the other Operative
Documents (and shall not be merged into any conveyance or transfer document),
and shall be and continue in effect notwithstanding any investigation made by
any party hereto or to any of the other Operative Documents and the fact that
any such party may waive compliance with any of the other terms, provisions or
conditions of any of the Operative Documents.

        SECTION 12.2. Brokers. Lessee, each Investor, Lessor, Conduit,
Administrative Agent and each Collateral Agent each represents to the other that
it has not retained or employed any broker, finder or financial advisor other
than the retention by Lessee of Scheer Partners, Inc. to act on their behalf in
connection with the Overall Transaction, nor has it authorized any other broker,
finder or financial adviser retained or employed by any other Person so to act,
nor has it incurred any fees or commissions to which Lessee, any Investor,
Lessor, Conduit, Administrative Agent or any Collateral Agent might be subjected
by virtue of their entering into the transactions contemplated by this
Participation Agreement. Any Person who is in breach of this representation
shall indemnify and hold the other Persons harmless from and against any
liability arising out of such breach of this representation. The provisions of
this Section 12.2 shall survive the expiration or termination of this
Participation Agreement or any other Operative Document.

        SECTION 12.3. Notices. Unless otherwise specified herein, all notices,
requests, demands or other communications to or upon the respective parties
hereto shall be by letter, facsimile (with telephonic confirmation), bank wire
or where expressly provided for in the Operative Documents, telephone (with
written confirmation promptly thereafter), and shall be deemed to have been
given, in the case of notice by letter, the earlier of when delivered to the
addressee by hand or courier (including an overnight courier) if delivered on a
Business Day and, if not delivered on a Business Day, the first Business Day
thereafter or on the third Business Day after depositing the same in the mails,
registered or certified mail, postage prepaid, return receipt requested,
addressed as provided on Schedule II and, in the case of notice by facsimile,
telephone or bank wire, when transmitted during business hours on a Business Day
and, if not transmitted during business hours on a Business Day, the first
Business Day thereafter, addressed as provided on Schedule II, or to such other
address as any of the parties hereto may designate by written notice. Copies of
all notices given by facsimile or bank wire shall be contemporaneously sent by
overnight courier. Notwithstanding any other provision of this Participation
Agreement or the Operative Documents, if Lessee is required to deliver notice to
one or more of the parties to the Operative Documents notice to all such parties
shall be deemed to have been duly given by Lessee by delivering any such notice
to Administrative Agent, who shall in turn promptly deliver such notice to the
appropriate party hereto.

        SECTION 12.4. Counterparts. This Participation Agreement and each of the
other Operative Documents may be executed by the parties hereto in separate
counterparts, each of which when so executed and delivered shall be an original,
but all such counterparts shall together constitute but one and the same
instrument.

        SECTION 12.5. Amendments, Waivers and Instructions.

        (a)     No Operative Document nor any of the terms thereof (other than
any Lessor Hedging Agreement which, notwithstanding anything to the contrary set
forth in this

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Participation Agreement or any other Operative Document, may be terminated,
amended, supplemented, waived or modified in accordance with the terms thereof)
may be terminated, amended, supplemented, waived or modified except (i) in the
case of an ambiguity, defect or inconsistency in any Operative Document, and
such amendment, supplement or waiver would not have an adverse effect on any
Participant's rights, with the written agreement or consent of Lessee; (ii) in
the case of a termination, amendment, supplement, waiver or modification to be
binding on Lessee, Lessor, any Investor or Administrative Agent, either
Collateral Agent, or any Lessor Hedge Counterparty, with the written agreement
or consent of such party, and in all cases (so long as no Bankruptcy Default,
Construction Agency Event of Default or Lease Event of Default shall have
occurred and is continuing) the consent of Lessee; and (iii) in the case of a
termination, amendment, supplement, waiver or modification to be binding on (A)
the Liquidity Providers, with the written agreement or consent of the requisite
Liquidity Providers (assuming the requisite Investor consent has been obtained)
and (B) the Conduit, with the written agreement or consent of the Conduit
(assuming the requisite Liquidity Providers' consent has been obtained) and (so
long as no Bankruptcy Default, Construction Agency Event of Default or Lease
Event of Default shall have occurred and is continuing) Lessee; provided,
however, that:

                        (1)     no such termination, amendment, supplement,
        waiver or modification shall without written agreement or consent of
        each Participant and each Lessor Hedge Counterparty affected thereby:

                        (x)(i) modify any of the provisions of this Section
                12.5, change the definition of "Available Commitments",
                "Commitment", "Commitment Amount", "In Balance", "Liquid
                Collateral", "Maturity Date", "Majority Banks", "Non-Properly
                Margined Liquid Collateral", "Properly Margined Liquid
                Collateral" "Permitted Investment", or "Required Liquid
                Collateral" or modify any provision of an Operative Document
                requiring action by Majority Banks; (ii) amend, modify, waive or
                supplement any of the provisions of Sections 2.5, 2.6 or 6.1 of
                the A Loan Agreement, Sections 2.5, 2.6 or 6.1 of the B Loan
                Agreement, or the representations of such Participant in Article
                V or the covenants of such Participant in Article VI or the
                covenants of HGSI in Section 6.1; (iii) reduce or modify any
                fees or indemnities in favor of any Participant, including
                amounts payable pursuant to Article IX (except that any Person
                may consent to any reduction, modification, amendment or waiver
                of any indemnity payable to it), (iv) modify, postpone, reduce
                or forgive, in whole or in part, any payment of Rent (other than
                pursuant to the terms of any Operative Document), any Loan or
                any portion of any Investor Amount, the Traville Lease Balance,
                the Manufacturing Lease Balance, the Lease Balance, the
                Construction Period Maximum Guaranty Amount, the Residual Value
                Guaranty Amount, Unguaranteed Residual Lease Balance, amounts
                due pursuant to Article V, VII or XIV of the Lease, interest or
                Yield or, subject to clause (iii) above, any other amount
                payable under the Lease or this Participation Agreement, or
                modify the definition or method of calculation of Rent (other
                than pursuant to the terms of any Operative Document), any Loan
                or any Investor Amount, the Traville Lease Balance, the
                Manufacturing Lease Balance, the Lease Balance, the Construction
                Period Maximum Guaranty Amount, Residual Value Guaranty Amount,
                Unguaranteed Residual Lease Balance, or any other definition
                which would affect the amounts to be advanced

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                                                         PARTICIPATION AGREEMENT

                or which are payable under the Operative Documents or any of the
                other matters set forth above; or (iv) extend the Lease Term; or

                        (y)     consent to any assignment of the Lease, release
                Lessee from its obligations in respect of the payments of Rent,
                the Traville Lease Balance, the Manufacturing Lease Balance and
                the Lease Balance or change the absolute and unconditional
                character of such obligation;

                        (2)     no termination, amendment, supplement, waiver or
        modification shall, without the written agreement or consent of each
        Participant, each Lessor Hedge Counterparty and Lessee, be made to
        Article X of this Participation Agreement or the definition of
        "Construction Agency Event of Default" or "Lease Event of Default";

                        (3)     each termination, amendment, supplement, waiver
        or modification of any Operative Document shall be subject to the
        consent rights of Conduit and the Majority Banks; and

                        (4)     notwithstanding anything to the contrary
        contained herein or in any other Operative Document, no termination,
        amendment, supplement, waiver or modification adversely affecting Lessee
        shall, without the written consent of Lessee, be made to any Operative
        Document.

        (b)     Administrative Agent and each Collateral Agent shall act in
accordance with written instructions from the Directing Party.

        SECTION 12.6. Headings, etc. The Table of Contents and headings of the
various Articles and Sections of this Participation Agreement are for
convenience of reference only and shall not modify, define, expand or limit any
of the terms or provisions hereof.

        SECTION 12.7. Parties in Property. Except as expressly provided herein,
none of the provisions of this Participation Agreement or the other Operative
Documents are intended for the benefit of any Person except the parties hereto
and their permitted successors and assigns; provided, however, that any Lessor
Hedging Agreement Counterparty shall be a third party beneficiary of this
Participation Agreement.

        SECTION 12.8. Applicable Law. THIS PARTICIPATION AGREEMENT AND THE
RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL IN ALL RESPECTS BE
GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE
STATE OF NEW YORK, INCLUDING SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL
OBLIGATIONS LAW BUT EXCLUDING TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW
ALL OTHER CONFLICTS OF LAWS PRINCIPLES AND CHOICE OF LAW RULES OF NEW YORK.

        SECTION 12.9. Severability. Any provision of this Participation
Agreement or any of the Operative Documents that is prohibited or unenforceable
in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent
of such prohibition or unenforceability without invalidating the remaining
provisions hereof or thereof, and any such prohibition or

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                                                         PARTICIPATION AGREEMENT

unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

        SECTION 12.10. Limitation of Liability. No Participant, Agent or Lessor
shall have any obligation to any other Participant, any other Agent or Lessor or
party hereto with respect to transactions contemplated by the Operative
Documents, except those obligations of such Participant expressly set forth in
the Operative Documents or except as set forth in the instruments delivered in
connection therewith, and no Participant and no stockholder, employee, officer,
director, beneficial owner, member, manager or incorporator thereof shall be
liable for performance by any other party hereto of such other party's
obligations under the Operative Documents except as otherwise so set forth. Each
party hereto and its affiliates hereby waives and releases any claims, rights or
causes of action it may have against any other party hereto arising in respect
of the Overall Transaction for punitive or consequential damages.

        SECTION 12.11. Further Assurances. The parties hereto shall promptly
cause to be taken, executed, acknowledged or delivered, at the sole expense of
Lessee (provided that during the Construction Period Lessee shall request an
Advance, the proceeds of which shall be used to pay such expense), all such
further acts, conveyances, documents and assurances as the other parties may
from time to time reasonably request in order to carry out and effectuate the
intent and purposes of this Participation Agreement, the other Operative
Documents, and the transactions contemplated hereby and thereby (including to
the extent permitted under the Operative Documents, the preparation, execution
and filing of any and all UCC financing statements, fixture filings and other
filings or registrations which the parties hereto may from time to time request
to be filed or effected); provided, however, that Lessee shall not be required
to pay expenses pursuant to this Section 12.11 to the extent arising from a
breach or alleged breach by Lessor or a Participant of any representation,
warranty or agreement entered into in connection with the assignment or
participation of any Facility Loan under the Loan Agreement or investment or
interest in Lessor unless such breach or alleged breach arose in whole or in
part from an act or omission of Lessee. Lessee, at its own expense (provided
that during the Construction Period Lessee shall request an Advance, the
proceeds of which shall be used to pay such expense) and without need of any
prior request from any other party, shall take such actions as may be necessary
(including any action specified in the preceding sentence), or (if an Investor
shall so request) as so requested, in order to maintain and protect Lessor's
interest in the Properties provided for hereunder or under any other Operative
Document.

        Lessor shall from time to time execute and deliver all instruments of
further assurance and do such further acts as may be reasonably necessary or
proper to carry out more effectively the purpose of the Assignment of Lease.

        At any time and from time to time, upon the reasonable written request
of Lessor and at the sole expense of Lessee (provided that during the
Construction Period Lessee shall request an Advance, the proceeds of which shall
be used to pay such expense), Lessee shall promptly and duly execute and deliver
such further instruments and documents and take such further actions as Lessor
reasonably may request for the purposes of obtaining or preserving the full
benefits of the Lessee Deed of Trust and of the rights and powers granted by the
Lessee Deed of Trust.

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                                                         PARTICIPATION AGREEMENT

        At any time and from time to time, upon the reasonable written request
of Administrative Agent and at the sole expense of Lessee (provided that during
the Construction Period Lessee shall request an Advance, the proceeds of which
shall be used to pay such expense), Lessor will promptly and duly execute and
deliver such further instruments and documents and take such further actions as
Administrative Agent reasonably may request for the purposes of obtaining or
preserving the full benefits of the Lessor Deed of Trust and of the rights and
powers granted by the Lessor Deed of Trust.

        Without limiting the foregoing, Lessee agrees that it will, at its own
cost and expense (provided that during the Construction Period Lessee shall
request an Advance, the proceeds of which shall be used to pay such cost and
expense), cause financing statements (including precautionary financing
statements and continuation statements), fixture filings and other documents, to
be recorded or filed at such places and times in such manner, and will all such
other actions or cause such other actions to be taken, as may be necessary or as
may be reasonably requested by Lessor, Administrative Agent or either Collateral
Agent in accordance with this Participation Agreement or the other Operative
Documents in order to establish, continue, perfect and protect the title of
Lessor to the Properties and the rights of Lessor, Conduit, Administrative Agent
and the Collateral Agents under the Lease and the other Operative Documents. To
the extent permitted by Applicable Laws, Lessee hereby authorizes any such
financing statement and fixture filings to be filed without the necessity of the
signature of Lessee.

        SECTION 12.12. Reproduction of Documents. This Participation Agreement
and all other Operative Documents, all documents constituting Schedules or
Exhibits hereto or thereto, and all documents relating hereto or thereto
received by any Participant or party hereto, including: (a) consents, waivers
and alterations that may hereafter be executed; (b) documents received by such
Participant or party in connection with the receipt and/or acquisition of the
Properties; and (c) financial statements, certificates, and other information
previously or hereafter furnished to such Participant or party may be reproduced
by such Participant or party receiving the same by any photographic,
photostatic, microfilm, micro-card, miniature photographic or other similar
process. Each party agrees and stipulates that, to the extent permitted by law,
any such reproduction shall be admissible in evidence as the original itself in
any judicial or administrative proceeding (whether or not the original is in
existence and whether or not such reproduction was made by such party in the
regular course of business) and that, to the extent permitted by law, any
enlargement, facsimile, or further reproduction of such reproduction shall
likewise be admissible in evidence.

        SECTION 12.13. Submission to Jurisdiction. Each party to this
Participation Agreement irrevocably and unconditionally:

        (a)     submits for itself and its property in any legal action or
proceeding relating to this Participation Agreement or any other Operative
Document, or for recognition and enforcement of any judgment in respect thereof,
to the non-exclusive general jurisdiction of the Courts of the State of New York
sitting in the County of New York, the courts of the United States of America
for the Southern District of New York, and appellate courts from any thereof;

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                                                         PARTICIPATION AGREEMENT

        (b)     consents that any such action or proceedings may be brought to
such courts, and waives any objection that it may now or hereafter have to the
venue of any such action or proceeding in any such court or that such action or
proceeding was brought in an inconvenient court and agrees not to plead or claim
the same;

        (c)     agrees that service of process in any such action or proceeding
may be effected by mailing a copy thereof by registered or certified mail (or
any substantially similar form of mail), postage prepaid, to such Person at its
address set forth on Schedule II or at such other address of which the other
Persons shall have been notified pursuant to Section 12.3; and

        (d)     agrees that nothing herein shall affect the right to effect
service of process in any other manner permitted by law or shall limit the right
to sue in any other jurisdiction. In addition, HGSI hereby waives its right to
assert any defense, claim or counterclaim against the Trust to the extent such
claim, defense, or counterclaim arises out of the Trust's lack of legal capacity
to sue for failure of qualifying to do business under Maryland Applicable Law.

        SECTION 12.14. Jury Trial. EACH PARTY TO THIS PARTICIPATION AGREEMENT
WAIVES ANY RIGHT TO A TRIAL BY JURY IN ANY ACTION OR PROCEEDING TO ENFORCE OR
DEFEND ANY RIGHTS UNDER THIS PARTICIPATION AGREEMENT OR ANY OTHER OPERATIVE
DOCUMENT OR UNDER ANY AMENDMENT, INSTRUMENT, DOCUMENT OR AGREEMENT DELIVERED OR
WHICH MAY IN THE FUTURE BE DELIVERED IN CONNECTION HEREWITH OR THEREWITH OR
ARISING FROM ANY RELATIONSHIP EXISTING IN CONNECTION WITH THIS PARTICIPATION
AGREEMENT OR ANY OTHER OPERATIVE DOCUMENT AND AGREES THAT ANY SUCH ACTION OR
PROCEEDING SHALL BE TRIED BEFORE A COURT AND NOT BEFORE A JURY.

        SECTION 12.15. Appointment of Administrative Agent.

        (a)     Each Participant hereby irrevocably appoints Administrative
Agent as its agent hereunder and under the other Operative Documents and hereby
authorizes Administrative Agent to take such action on its behalf and to
exercise such rights, remedies, powers and privileges hereunder or thereunder as
are specifically authorized to be exercised by Administrative Agent by the terms
hereof or thereof, together with such rights, remedies, powers and privileges as
are reasonably incidental thereto. Administrative Agent may execute any of its
duties hereunder and under the other Operative Documents by or through agents or
employees. The relationship between Administrative Agent and each Participant is
that of agent and principal only, and nothing herein shall be deemed to
constitute Administrative Agent a trustee for any Participant or impose on
Administrative Agent any obligations other than those for which express
provision is made herein or in the other Operative Documents.

        (b)     Except as required by the specific terms of the Operative
Documents, Administrative Agent shall not have any duty to exercise any right,
power, remedy or privilege granted or assigned to it thereby, or to take any
affirmative action or exercise any discretion hereunder or thereunder, unless
directed to do so by the Directing Party (and shall be fully protected in acting
or refraining from acting pursuant to such directions which shall be binding
upon the Participants), and shall not, without the prior approval of the
Directing Party and except

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                                                         PARTICIPATION AGREEMENT

as otherwise provided in Section 12.5, consent to any departure by Lessee,
Lessor, the Investors or Conduit from the terms of the Lease or any Operative
Document, waive any default on the part of any such party under any such
agreement or instrument or amend, modify, supplement, waive or terminate, or
agree to any surrender of, any such agreement or instrument; provided, however,
that Administrative Agent shall not be required to take any action which exposes
Administrative Agent to personal liability or which is contrary to this
Participation Agreement, the other Operative Documents or any Applicable Laws.

        (c)     Neither Administrative Agent nor any of its respective
directors, officers, agents or employees shall be liable to any Participant,
Lessee or Lessor, as the case may be, for any action taken or omitted to be
taken by it or them hereunder, under the other Operative Documents, or in
connection herewith or therewith, except for its or their own gross negligence,
willful misconduct or mishandling of funds, nor shall Administrative Agent be
responsible to any Participant for the validity, effectiveness, value,
sufficiency or enforceability against Lessee, Lessor, the Investors, Conduit,
Administrative Agent or the Collateral Agents, of any Collateral, this
Participation Agreement, the other Operative Documents, or any other document
furnished pursuant hereto or thereto or in connection herewith or therewith.
Without limitation of the generality of the foregoing, Administrative Agent: (i)
may consult with legal counsel (including counsel for Lessee, Conduit or
Lessor), independent public accountants and other experts selected by it and
shall not be liable for any action taken or omitted to be taken in good faith by
it in accordance with the advice of such counsel, accountants or experts; (ii)
makes no warranty or representation to any Participant and shall not be
responsible to any Participant for any statements, warranties or representations
made in or in connection with this Participation Agreement, the other Operative
Documents, any other document furnished pursuant hereto or thereto or in
connection herewith or therewith; (iii) shall not have any duty to ascertain or
to inquire as to the performance or observance of any of the terms, covenants or
conditions of this Participation Agreement or the other Operative Documents, on
the part of any party hereto or thereto or to inspect the property (including
the books and records) of Lessee, Lessor or Conduit; (iv) shall not be
responsible to any Participant for the due execution, legality, validity,
enforceability, genuineness, sufficiency or value of this Participation
Agreement, the other Operative Documents or any other instrument or document
furnished pursuant hereto or thereto; and (v) shall incur no liability under or
in respect of the Operative Documents by acting upon any notice, consent,
certificate or other instrument or writing to the extent authorized herein or
therein believed by it to be genuine and signed or sent by the proper party or
parties.

        (d)     Each Participant hereby severally agrees, in the ratio that the
sum of such Participant's Investor Amount, Conduit Loans, Facility Loans,
Percentage Interests and Available Commitment bears to the sum of all Investor
Amounts, Conduit Loans, Facility Loans, Percentage Interests and Available
Commitments, to indemnify and hold harmless Administrative Agent, from and
against any and all losses, liabilities (including liabilities for penalties),
actions, suits, judgments, demands, damages, costs and expenses of any kind
whatsoever (including, without limitation, reasonable fees and expenses of
attorneys, accountants and experts) incurred or suffered by Administrative Agent
in its capacity as Administrative Agent hereunder and under the Operative
Documents as a result of any action taken or omitted to be taken by
Administrative Agent in such capacity or otherwise incurred or suffered by, made
upon, or assessed against Administrative Agent in such capacity; provided,
however, that no Participant shall be liable for any portion of any such losses,
liabilities

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<PAGE>

                                                         PARTICIPATION AGREEMENT

(including liabilities for penalties), actions, suits, judgments, demands,
damages, costs or expenses resulting from or attributable to gross negligence or
willful misconduct on the part of Administrative Agent; and provided, further,
that Conduit shall only be liable to the extent there exist Excess Funds in the
Commercial Paper Account not otherwise payable to another Person by
Administrative Agent pursuant to the Security Agreement or Article X hereof.
Without limiting the generality of the foregoing, each Participant hereby
agrees, in the ratio aforesaid, to reimburse Administrative Agent promptly
following its demand for any reasonable out-of-pocket expenses (including,
without limitation, reasonable attorneys' fees and expenses) incurred by
Administrative Agent under the Operative Documents, and not promptly reimbursed
to Administrative Agent by Lessee, Lessor or Conduit. Each Participant's
obligations under this paragraph shall survive the termination of the Operative
Documents and the discharge of Lessee's, Lessor's and Conduit's obligations
thereunder. This indemnity shall survive the removal or resignation of
Administrative Agent. In no event shall Administrative Agent be liable for
special, indirect or consequential loss or damage of any kind whatsoever
(including but not limited to lost profits) under the Operative Documents, even
if Administrative Agent has been advised of the likelihood of such loss or
damage and regardless of the form of action.

        (e)     The Participants agree that, with respect to their obligation to
fund under the Operative Documents and the Investor Contributions or Loans made
by them, any Participant acting as Administrative Agent shall have the same
rights and powers hereunder as any other Participant and may exercise the same
as though it were not performing the duties specified herein; and the terms
"Participants," "Directing Party," or any similar terms shall, unless the
context clearly otherwise indicates, include Administrative Agent and
Administrative Agent may accept deposits from, lend money to, and generally
engage in any kind of banking, trust or other business with Lessee, Lessor,
Conduit or any of their respective affiliates as if it were not performing the
duties specified herein, and may accept fees and other consideration from
Lessee, Lessor, Conduit or any of their respective affiliates for services in
connection with the Operative Documents and otherwise without having to account
for the same to any Participant.

        (f)     Each Participant hereby acknowledges that it has, independent of
and without reliance upon Administrative Agent or any materials provided by
Administrative Agent or any other Participant and based on such documents and
information as it has deemed appropriate, made its own credit analysis and
decision to enter into the Operative Documents to which it is a party.
Administrative Agent shall in no event be liable to any Participant on account
of any materials prepared or provided by it.

        SECTION 12.16. Resignation by Administrative Agent.

        (a)     Administrative Agent may resign as such at any time upon at
least thirty (30) days' prior written notice to Lessee, Lessor, the other Agents
and, the Participants.

        (b)     In the event of such resignation, the Directing Party shall as
promptly as practicable appoint a successor agent to replace Administrative
Agent, subject to the prior written consent of Lessee (provided that such
consent shall not (x) be required during the continuance of a Lease of Default
or Construction Agency Event of Default or any other Event of Default caused by
a Lease Default or Construction Agency Event of Default and (y) in any event, be
unreasonably withheld). If no successor Administrative Agent shall have been so

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                                                         PARTICIPATION AGREEMENT

appointed by the Directing Party, and shall have accepted such appointment,
within 30 days after the retiring Administrative Agent's giving of notice of
resignation, then the retiring Administrative Agent may petition a court of
competent jurisdiction to appoint a successor Administrative Agent. Any
successor Administrative Agent shall (1) be a commercial bank organized under
the laws of the United States of America or of any State thereof having a
combined capital and surplus of at least $200,000,000 and (2) have commercial
paper ratings of A-1 from S&P and P-1 from Moody's. Upon the acceptance of any
appointment as Administrative Agent hereunder by a successor Administrative
Agent, such successor Administrative Agent shall thereupon succeed to and become
vested with all the rights, powers, discretion, privileges and duties of the
retiring Administrative Agent, and the retiring Administrative Agent shall be
discharged from its duties and obligations hereunder. Notwithstanding the
resignation of Administrative Agent or any Administrative Agent hereunder, the
provisions of Section 12.15 shall continue to inure to the benefit of
Administrative Agent in respect of any action taken or omitted to be taken by
Administrative Agent in its capacity as such while it was such under the
Operative Documents.

        SECTION 12.17. Appointment of the Fleet National Bank Collateral Agent.

        (a)     Each Participant and the Lessor hereby irrevocably appoints the
Fleet National Bank Collateral Agent as its agent hereunder and under the other
Operative Documents and hereby authorizes the Fleet National Bank Collateral
Agent to take such action on its behalf and to exercise such rights, remedies,
powers and privileges hereunder or thereunder as are specifically authorized to
be exercised by the Fleet National Bank Collateral Agent by the terms hereof or
thereof, together with such rights, remedies, powers and privileges as are
reasonably incidental thereto. The Fleet National Bank Collateral Agent may
execute any of its duties hereunder and under the other Operative Documents by
or through agents or employees. The relationship between the Fleet National Bank
Collateral Agent and each Participant and the Lessor is that of agent and
principal only, and nothing herein shall be deemed to constitute the Fleet
National Bank Collateral Agent a trustee for any Participant or Lessor or impose
on the Fleet National Bank Collateral Agent any obligations other than those for
which express provision is made herein or in the other Operative Documents.

        (b)     Except as required by the specific terms of the Operative
Documents, the Fleet National Bank Collateral Agent shall not have any duty to
exercise any right, power, remedy or privilege granted or assigned to it
thereby, or to take any affirmative action or exercise any discretion hereunder
or thereunder, unless directed to do so by the Directing Party (and shall be
fully protected in acting or refraining from acting pursuant to such directions
which shall be binding upon the Participants and the Lessor), and shall not,
without the prior approval of the Directing Party and except as otherwise
provided in Section 12.5, consent to any departure by Lessee, Lessor, the
Investors or Conduit from the terms of the Lease or any Operative Document,
waive any default on the part of any such party under any such agreement or
instrument or amend, modify, supplement, waive or terminate, or agree to any
surrender of, any such agreement or instrument; provided, however, that the
Fleet National Bank Collateral Agent shall not be required to take any action
which exposes the Fleet National Bank Collateral Agent to personal liability or
which is contrary to this Participation Agreement, the other Operative Documents
or any Applicable Laws.

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                                                         PARTICIPATION AGREEMENT

        (c)     Neither the Fleet National Bank Collateral Agent nor any of its
respective directors, officers, agents or employees shall be liable to any
Participant, Lessee or Lessor, as the case may be, for any action taken or
omitted to be taken by it or them hereunder, under the other Operative
Documents, or in connection herewith or therewith, except for its or their own
gross negligence, willful misconduct or mishandling of funds, nor shall the
Fleet National Bank Collateral Agent be responsible to any Participant or Lessor
for the validity, effectiveness, value, sufficiency or enforceability against
Lessee, Lessor, the Investors, Conduit, Administrative Agent or the Collateral
Agents, of any Collateral, this Participation Agreement, the other Operative
Documents, or any other document furnished pursuant hereto or thereto or in
connection herewith or therewith. Without limitation of the generality of the
foregoing, the Fleet National Bank Collateral Agent: (i) may consult with legal
counsel (including counsel for Lessee, Conduit or Lessor), independent public
accountants and other experts selected by it and shall not be liable for any
action taken or omitted to be taken in good faith by it in accordance with the
advice of such counsel, accountants or experts; (ii) makes no warranty or
representation to any Participant or Lessor and shall not be responsible to any
Participant for any statements, warranties or representations made in or in
connection with this Participation Agreement, the other Operative Documents, any
other document furnished pursuant hereto or thereto or in connection herewith or
therewith; (iii) shall not have any duty to ascertain or to inquire as to the
performance or observance of any of the terms, covenants or conditions of this
Participation Agreement or the other Operative Documents, on the part of any
party hereto or thereto or to inspect the property (including the books and
records) of Lessee, Lessor or Conduit; (iv) shall not be responsible to any
Participant or Lessor for the due execution, legality, validity, enforceability,
genuineness, sufficiency or value of this Participation Agreement, the other
Operative Documents or any other instrument or document furnished pursuant
hereto or thereto; and (v) shall incur no liability under or in respect of the
Operative Documents by acting upon any notice, consent, certificate or other
instrument or writing to the extent authorized herein or therein believed by it
to be genuine and signed or sent by the proper party or parties.

        (d)     Each Participant hereby severally agrees, in the ratio that the
sum of such Participant's Investor Amount, Conduit Loans, Facility Loans,
Percentage Interests and Available Commitment bears to the sum of all Investor
Amounts, Conduit Loans, Facility Loans, Percentage Interests and Available
Commitments of all Participants, to indemnify and hold harmless the Fleet
National Bank Collateral Agent, from and against any and all losses, liabilities
(including liabilities for penalties), actions, suits, judgments, demands,
damages, costs and expenses of any kind whatsoever (including, without
limitation, reasonable fees and expenses of attorneys, accountants and experts)
incurred or suffered by the Fleet National Bank Collateral Agent in its capacity
as the Fleet National Bank Collateral Agent hereunder and under the Operative
Documents as a result of any action taken or omitted to be taken by the Fleet
National Bank Collateral Agent in such capacity or otherwise incurred or
suffered by, made upon, or assessed against the Fleet National Bank Collateral
Agent in such capacity; provided, however, that no Participant shall be liable
for any portion of any such losses, liabilities (including liabilities for
penalties), actions, suits, judgments, demands, damages, costs or expenses
resulting from or attributable to gross negligence or willful misconduct on the
part of the Fleet National Bank Collateral Agent; and provided, further, that
Eagle shall only be liable to the extent there exist Excess Funds in the
Commercial Paper Account not otherwise payable to another Person by the Fleet
National Bank Collateral Agent pursuant to the Liquid Collateral Agreement or
Article X hereof. Without limiting the generality of the foregoing, each
Participant hereby agrees, in the

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<PAGE>

                                                         PARTICIPATION AGREEMENT

ratio aforesaid, to reimburse the Fleet National Bank Collateral Agent promptly
following its demand for any reasonable out-of-pocket expenses (including,
without limitation, reasonable attorneys' fees and expenses) incurred by the
Fleet National Bank Collateral Agent under the Operative Documents, and not
promptly reimbursed to the Fleet National Bank Collateral Agent by Lessee,
Lessor or Conduit. Each Participant's obligations under this paragraph shall
survive the termination of the Operative Documents and the discharge of
Lessee's, Lessor's and Conduit's obligations thereunder. This indemnity shall
survive the removal or resignation of the Fleet National Bank Collateral Agent.
In no event shall the Fleet National Bank Collateral Agent be liable for
special, indirect or consequential loss or damage of any kind whatsoever
(including but not limited to lost profits) under the Operative Documents, even
if the Fleet National Bank Collateral Agent has been advised of the likelihood
of such loss or damage and regardless of the form of action.

        (e)     The Participants agree that, with respect to their obligation to
fund under the Operative Documents and the Investor Contributions or Loans made
by them, any Participant acting as the Fleet National Bank Collateral Agent
shall have the same rights and powers hereunder as any other Participant and may
exercise the same as though it were not performing the duties specified herein;
and the terms "Participants," "Directing Party," or any similar terms shall,
unless the context clearly otherwise indicates, include the Fleet National Bank
Collateral Agent and the Fleet National Bank Collateral Agent may accept
deposits from, lend money to, and generally engage in any kind of banking, trust
or other business with Lessee, Lessor, Conduit or any of their respective
affiliates as if it were not performing the duties specified herein, and may
accept fees and other consideration from Lessee, Lessor, Conduit or any of their
respective affiliates for services in connection with the Operative Documents
and otherwise without having to account for the same to any Participant.

        (f)     Each Participant hereby acknowledges that it has, independent of
and without reliance upon the Fleet National Bank Collateral Agent or any
materials provided by the Fleet National Bank Collateral Agent or any other
Participant and based on such documents and information as it has deemed
appropriate, made its own credit analysis and decision to enter into the
Operative Documents to which it is a party. The Fleet National Bank Collateral
Agent shall in no event be liable to any Participant on account of any materials
prepared or provided by it.

        (g)     The Fleet National Bank Collateral Agent covenants and agrees
that it shall give prompt notice to each Participant upon exercising any of its
remedies with respect to its related Account.

        SECTION 12.18. Resignation by the Fleet National Bank Collateral Agent

        (a)     The Fleet National Bank Collateral Agent may resign as such at
any time upon at least thirty (30) days' prior written notice to Lessee, Lessor,
the other Agents and, the Participants. In the event of such resignation, Fleet
National Bank shall as promptly as practicable appoint a successor agent to
replace the Fleet National Bank Collateral Agent, subject to the prior written
consent of Lessee (provided that such consent shall not (x) be required during
the continuance of a Lease of Default or Construction Agency Event of Default or
any other Event of Default caused by a Lease Default or Construction Agency
Event of Default and the exercise of remedies under the Operative Documents as a
result thereof and (y) in any event, be

                                       94
<PAGE>

                                                         PARTICIPATION AGREEMENT

unreasonably withheld). If no successor Fleet National Bank Collateral Agent
shall have been so appointed by Fleet National Bank, and shall have accepted
such appointment, within 30 days after the retiring Fleet National Bank
Collateral Agent's giving of notice of resignation, then the retiring Fleet
National Bank Collateral Agent may petition a court of competent jurisdiction to
appoint a successor Fleet National Bank Collateral Agent. Any successor Fleet
National Bank Collateral Agent shall (1) be a commercial bank organized under
the laws of the United States of America or of any State thereof having a
combined capital and surplus of at least $200,000,000, and (2) have commercial
paper ratings of A-1 from S&P and P-1 from Moody's. Upon the acceptance of any
appointment as Fleet National Bank Collateral Agent hereunder by a successor
Fleet National Bank Collateral Agent, such successor Fleet National Bank
Collateral Agent shall thereupon succeed to and become vested with all the
rights, powers, discretion, privileges and duties of the retiring Fleet National
Bank Collateral Agent, and the retiring Fleet National Bank Collateral Agent
shall be discharged from its duties and obligations hereunder. Notwithstanding
the resignation of the Fleet National Bank Collateral Agent or any Fleet
National Bank Collateral Agent hereunder, the provisions of Section 12.17 shall
continue to inure to the benefit of the Fleet National Bank Collateral Agent in
respect of any action taken or omitted to be taken by the Fleet National Bank
Collateral Agent in its capacity as such while it was such under the Operative
Documents.

        SECTION 12.19. Appointment of the First Union Collateral Agent.

        (a)     Each Participant and Lessor hereby irrevocably appoints the
First Union Collateral Agent as its agent hereunder and under the other
Operative Documents and hereby authorizes the First Union Collateral Agent to
take such action on its behalf and to exercise such rights, remedies, powers and
privileges hereunder or thereunder as are specifically authorized to be
exercised by the First Union Collateral Agent by the terms hereof or thereof,
together with such rights, remedies, powers and privileges as are reasonably
incidental thereto. The First Union Collateral Agent may execute any of its
duties hereunder and under the other Operative Documents by or through agents or
employees. The relationship between the First Union Collateral Agent and each
Participant and Lessor is that of agent and principal only, and nothing herein
shall be deemed to constitute the First Union Collateral Agent a trustee for any
Participant or impose on the First Union Collateral Agent any obligations other
than those for which express provision is made herein or in the other Operative
Documents.

        (b)     Except as required by the specific terms of the Operative
Documents, the First Union Collateral Agent shall not have any duty to exercise
any right, power, remedy or privilege granted or assigned to it thereby, or to
take any affirmative action or exercise any discretion hereunder or thereunder,
unless directed to do so by the Directing Party (and shall be fully protected in
acting or refraining from acting pursuant to such directions which shall be
binding upon the Participants and Lessor), and shall not, without the prior
approval of the Directing Party and except as otherwise provided in Section
12.5, consent to any departure by Lessee, Lessor, the Investors or Conduit from
the terms of the Lease or any Operative Document, waive any default on the part
of any such party under any such agreement or instrument or amend, modify,
supplement, waive or terminate, or agree to any surrender of, any such agreement
or instrument; provided, however, that the First Union Collateral Agent shall
not be required to take any action which exposes the First Union Collateral
Agent to personal liability or which is contrary to this Participation
Agreement, the other Operative Documents or any Applicable Laws.

                                       95
<PAGE>

                                                         PARTICIPATION AGREEMENT

        (c)     Neither the First Union Collateral Agent nor any of its
respective directors, officers, agents or employees shall be liable to any
Participant, Lessee or Lessor, as the case may be, for any action taken or
omitted to be taken by it or them hereunder, under the other Operative
Documents, or in connection herewith or therewith, except for its or their own
gross negligence, willful misconduct or mishandling of funds nor shall the First
Union Collateral Agent be responsible to any Participant or Lessor for the
validity, effectiveness, value, sufficiency or enforceability against Lessee,
Lessor, the Investors, Conduit, Administrative Agent or the Collateral Agents,
of any Collateral, this Participation Agreement, the other Operative Documents,
or any other document furnished pursuant hereto or thereto or in connection
herewith or therewith. Without limitation of the generality of the foregoing,
the First Union Collateral Agent: (i) may consult with legal counsel (including
counsel for Lessee, Conduit or Lessor), independent public accountants and other
experts selected by it and shall not be liable for any action taken or omitted
to be taken in good faith by it in accordance with the advice of such counsel,
accountants or experts; (ii) makes no warranty or representation to any
Participant or Lessor and shall not be responsible to any Participant for any
statements, warranties or representations made in or in connection with this
Participation Agreement, the other Operative Documents, any other document
furnished pursuant hereto or thereto or in connection herewith or therewith;
(iii) shall not have any duty to ascertain or to inquire as to the performance
or observance of any of the terms, covenants or conditions of this Participation
Agreement or the other Operative Documents, on the part of any party hereto or
thereto or to inspect the property (including the books and records) of Lessee,
Lessor or Conduit; (iv) shall not be responsible to any Participant or Lessor
for the due execution, legality, validity, enforceability, genuineness,
sufficiency or value of this Participation Agreement, the other Operative
Documents or any other instrument or document furnished pursuant hereto or
thereto; and (v) shall incur no liability under or in respect of the Operative
Documents by acting upon any notice, consent, certificate or other instrument or
writing to the extent authorized herein or therein believed by it to be genuine
and signed or sent by the proper party or parties.

        (d)     Each Participant hereby severally agrees, in the ratio that the
sum of such First Union Participant's Investor Amount, Conduit Loans, Facility
Loans, Percentage Interests and Available Commitment bears to the sum of all
Investor Amounts, Conduit Loans, Facility Loans, Percentage Interests and
Available Commitments of all Participants, to indemnify and hold harmless the
First Union Collateral Agent, from and against any and all losses, liabilities
(including liabilities for penalties), actions, suits, judgments, demands,
damages, costs and expenses of any kind whatsoever (including, without
limitation, reasonable fees and expenses of attorneys, accountants and experts)
incurred or suffered by the First Union Collateral Agent in its capacity as the
First Union Collateral Agent hereunder and under the Operative Documents as a
result of any action taken or omitted to be taken by the First Union Collateral
Agent in such capacity or otherwise incurred or suffered by, made upon, or
assessed against the First Union Collateral Agent in such capacity; provided,
however, that no Participant shall be liable for any portion of any such losses,
liabilities (including liabilities for penalties), actions, suits, judgments,
demands, damages, costs or expenses resulting from or attributable to gross
negligence or willful misconduct on the part of the First Union Collateral
Agent; and provided, further, that Eagle shall only be liable to the extent
there exist Excess Funds in the Commercial Paper Account not otherwise payable
to another Person by the Fleet National Bank Collateral Agent pursuant to the
Liquid Collateral Agreement or Article X hereof. Without limiting the generality
of the foregoing, each Participant hereby agrees, in the ratio aforesaid, to
reimburse

                                       96
<PAGE>

                                                         PARTICIPATION AGREEMENT

the First Union Collateral Agent promptly following its demand for any
reasonable out-of-pocket expenses (including, without limitation, reasonable
attorneys' fees and expenses) incurred by the First Union Collateral Agent under
the Operative Documents, and not promptly reimbursed to the First Union
Collateral Agent by Lessee, Lessor or Conduit. Each First Union Participant's
obligations under this paragraph shall survive the termination of the Operative
Documents and the discharge of Lessee's, Lessor's and Conduit's obligations
thereunder. This indemnity shall survive the removal or resignation of the First
Union Collateral Agent. In no event shall the First Union Collateral Agent be
liable for special, indirect or consequential loss or damage of any kind
whatsoever (including but not limited to lost profits) under the Operative
Documents, even if the First Union Collateral Agent has been advised of the
likelihood of such loss or damage and regardless of the form of action.

        (e)     The Participants agree that, with respect to their obligation to
fund under the Operative Documents and the Investor Contributions or Loans made
by them, any Participant acting as the First Union Collateral Agent shall have
the same rights and powers hereunder as any other Participant and may exercise
the same as though it were not performing the duties specified herein; and the
terms "Participants," "Directing Party," or any similar terms shall, unless the
context clearly otherwise indicates, include the First Union Collateral Agent
and the First Union Collateral Agent may accept deposits from, lend money to,
and generally engage in any kind of banking, trust or other business with
Lessee, Lessor, Conduit or any of their respective affiliates as if it were not
performing the duties specified herein, and may accept fees and other
consideration from Lessee, Lessor, Conduit or any of their respective affiliates
for services in connection with the Operative Documents and otherwise without
having to account for the same to any Participant.

        (f)     Each Participant hereby acknowledges that it has, independent of
and without reliance upon the First Union Collateral Agent or any materials
provided by the First Union Collateral Agent or any other Participant and based
on such documents and information as it has deemed appropriate, made its own
credit analysis and decision to enter into the Operative Documents to which it
is a party. The First Union Collateral Agent shall in no event be liable to any
Participant on account of any materials prepared or provided by it.

        (g)     The First Union Collateral Agent covenants and agrees that it
shall give prompt notice to each Participant upon exercising any of its remedies
with respect to its related Account.

        SECTION 12.20. Resignation by the First Union Collateral Agent.

        (a)     The First Union Collateral Agent may resign as such at any time
upon at least thirty (30) days' prior written notice to Lessee, Lessor, the
other Agents and the Participants.

In the event of such resignation, First Union National Bank shall as promptly as
practicable appoint a successor agent to replace the First Union Collateral
Agent, subject to the prior written consent of Lessee (provided that such
consent shall not (x) be required during the continuance of a Lease of Default
or Construction Agency Event of Default or any other Event of Default caused by
a Lease Default or Construction Agency Event of Default and the exercise of
remedies under the Operative Documents as a result thereof and (y) in any event,
be unreasonably withheld). If no successor First Union Collateral Agent shall
have been so appointed by First

                                       97
<PAGE>

                                                         PARTICIPATION AGREEMENT

Union National Bank, and shall have accepted such appointment, within 30 days
after the retiring First Union Collateral Agent's giving of notice of
resignation, then the retiring First Union Collateral Agent may petition a court
of competent jurisdiction to appoint a successor First Union Collateral Agent.
Any successor First Union Collateral Agent shall (1) be a commercial bank
organized under the laws of the United States of America or of any State thereof
having a combined capital and surplus of at least $200,000,000, (2) have
commercial paper ratings of A-1+ from S&P and P-1 from Moody's, (3) not be a
competitor, and (4) have been approved in writing by Lessee (provided that such
approval shall not (x) be required during the continuance of an Event of Default
and the exercise of remedies under the Operative Documents as a result thereof
and (y) in any event, be unreasonably withheld). Upon the acceptance of any
appointment as First Union Collateral Agent hereunder by a successor First Union
Collateral Agent, such successor First Union Collateral Agent shall thereupon
succeed to and become vested with all the rights, powers, discretion, privileges
and duties of the retiring First Union Collateral Agent, and the retiring First
Union Collateral Agent shall be discharged from its duties and obligations
hereunder. Notwithstanding the resignation of the First Union Collateral Agent
or any First Union Collateral Agent hereunder, the provisions of Section 12.19
shall continue to inure to the benefit of the First Union Collateral Agent in
respect of any action taken or omitted to be taken by the First Union Collateral
Agent in its capacity as such while it was such under the Operative Documents.

        SECTION 12.21. Binding Effect. This Participation Agreement shall be
binding upon and inure to the benefit of HGSI and each other party hereto and
their respective successors and assigns.

        SECTION 12.22. Non-Petition. Each party hereto hereby agrees that it
shall not institute against, or join or assist any other person in instituting
against, Lessor, any Liquidity Provider that is a rated commercial paper issuer
or Conduit any bankruptcy, reorganization, arrangement, insolvency or
liquidation proceeding or other proceedings under any federal or state
bankruptcy or similar law, for one year and a day after the latest maturing
commercial paper notes issued by Conduit are paid. This Section 12.22 shall
survive the termination of this Participation Agreement.

        SECTION 12.23. Limitations on Recourse to Conduit. Notwithstanding any
provision of this Participation Agreement to the contrary, each party hereto
agrees that Conduit shall only be required to pay (a) any fees or liabilities
that it may incur hereunder only to the extent Conduit has Excess Funds and (b)
any expenses, indemnities or other liabilities under any other Operative
Document only to the extent Conduit has Excess Funds; provided, however, that if
Conduit has insufficient funds to make any payments required by this
Participation Agreement to Lessor, Lessee, Collateral Agent, Liquidity Agent or
Liquidity Providers, such Persons shall not be excused from the performance of
their respective obligations hereunder (but shall have no additional obligations
as a result of such insufficient funds). In addition, no amount owing by Conduit
hereunder in excess of the liabilities that Conduit is required to pay in
accordance with the preceding sentence shall constitute a claim (as defined in
Section 101 to Title 11 of the United States Code) against Conduit. No recourse
shall be had for the payment of any amount owing hereunder or for the payment of
any fee hereunder or any other obligation of or claim against, Conduit arising
out of or based upon this Participation Agreement, against any stockholder,
employee, officer, director, manager or incorporator of Conduit or Affiliate
thereof;

                                       98
<PAGE>

                                                         PARTICIPATION AGREEMENT

provided, however, that the foregoing shall not relieve any such person or
entity of any liability they might otherwise have as a result of fraudulent
actions or omissions taken by them. Any and all claims against Conduit by any
other Person shall be subordinate to the claims of the holders of the commercial
paper notes of Conduit. The obligations of each party under this Section 12.23
shall survive the termination of this Participation Agreement.

        SECTION 12.24. Limitations on Recourse to the Trust Company. It is
expressly understood and agreed by the parties hereto that (a) except as
specifically provided for in the Operative Documents, each of the Operative
Documents executed by Wells Fargo Bank Northwest, N.A. are executed and
delivered by Wells Fargo Bank Northwest, N.A. not individually or personally but
solely as trustee of the Trust, in the exercise of the powers and authority
conferred and vested in it, (b) each of the representations, undertakings and
agreements herein made on the part of Lessor, the Trust or Trustee, as the case
may be, is made and intended not as personal representations, undertakings and
agreements by Wells Fargo Bank Northwest, N.A. but is made and intended for the
purpose for binding only the Trust, (c) except as specifically provided for in
the Operative Documents nothing herein contained shall be construed as creating
any liability on Wells Fargo Bank Northwest, N.A., individually or personally,
to perform any covenant either expressed or implied contained herein, all such
liability, if any, being expressly waived by the parties hereto and by any
Person claiming by, through or under the parties hereto and (d) under no
circumstances shall Wells Fargo Bank Northwest, N.A. be personally liable for
the payment of any indebtedness or expenses of any party hereto, or be liable
for the breach or failure of any obligation, representation, warranty or
covenant made or undertaken by it in its capacity as Trustee under the Operative
Documents.

        SECTION 12.25. Consent to Certain Actions. Lessor shall transfer the
Properties in accordance with Article 15 of the Lease and each of Lessor and
Collateral Agent shall execute such documents and instruments necessary to
effect such transfer. Upon satisfaction in full of Lessee's obligations under
the Operative Documents, Administrative Agent shall release the Deeds of Trust
and Collateral, and, together with Lessor, execute such instruments and
agreements as are necessary to effectuate such release. Lessor and
Administrative Agent shall enter into nondisturbance agreements.

        SECTION 12.26. Notice to Administrative Agent. HGSI shall provide to
Administrative Agent notice of each Advance Request in accordance with Section
2.2.5(a). HGSI also shall notify Administrative Agent prior to the receipt by
Administrative Agent thereof of the nature and amount of each payment of Rent.

        SECTION 12.27. Estoppel Certificates. Each party hereto agrees that at
any time and from time to time, it will promptly, but in no event later than ten
(10) Business Days after request by the other party hereto, execute, acknowledge
and deliver to such other party or to any prospective purchaser, assignee or
mortgagee or third party designated by such other party, a certificate stating,
to the best of its knowledge (a) that the Operative Documents are unmodified and
in force and effect (or if there have been modifications, that the Operative
Documents are in force and effect as modified and identifying the modification
agreements); (b) if requested, the amounts of outstanding: Yield, Conduit Loans
and/or Facility Loans; (c) the date to which Base Rent has been paid; (d) if
requested of Lessor, whether or not there is any existing default by Lessee in
the payment of Base Rent or any other sum of money due under the Operative

                                       99
<PAGE>

                                                         PARTICIPATION AGREEMENT

Documents, and whether or not, to the knowledge of Lessor or Administrative
Agent, there is any other existing default on the part of Lessee under the
Operative Documents and, if so, specifying the nature and extent thereof; (e) if
requested of Lessee, whether or not, to the knowledge of Lessee, there is any
existing default on the part of Lessor under the Operative Documents and, if so,
specifying the nature and extent thereof; and (f) whether or not, to the
knowledge of the signer after the due inquiry and investigation, there are any
setoffs, defenses or counterclaims against enforcement of the obligations to be
performed under the Operative Documents existing in favor of the party executing
such certificate.

        SECTION 12.28. Expenses During the Construction Period. Notwithstanding
anything to the contrary set forth in the Operative Documents, all expenses that
Lessee or Construction Agent is expressly obliged to pay in the Operative
Documents during the Construction Period, shall be payable by Lessor solely from
proceeds of Loans and Investor Amounts. Lessee agrees to make an Advance Request
to properly fund such expenses.

        SECTION 12.29. Release and Exchange of Liquid Collateral.

        A Collateral Agent shall be obligated to release its lien on certain
Liquid Collateral for its related account pursuant to paragraphs (a) or (b)
below if all of the following conditions are satisfied at the time of the
release: (i) no Event of Default shall have occurred and be continuing; (ii)
each Account (after giving effect to the release and, in the case of paragraph
(b) below, the delivery of additional Permitted Investments) has credited to it
Liquid Collateral with a Fair Market Value or Adjusted Market Value, whichever
is applicable, equal to or greater than the Required Liquid Collateral amount on
such date, (iii) each Account has a first priority perfected security interest
in the Liquid Collateral credited to such Account, and (iv) the Fair Market
Value or Adjusted Market Value of the Liquid Collateral credited to both
Accounts (after giving effect to the requested release of Liquid Collateral and
the delivery of additional Permitted Investments in the case of paragraph (b)
below) equals or exceeds the aggregate Required Liquid Collateral Amount for
both Accounts.

        (a)     Each Collateral Agent shall cause to be released from its
related Account its lien on certain Liquid Collateral identified in reasonable
detail in a written notice delivered to it by Lessee by no later than the end of
business on a Business Day that is five (5) Business Days after receipt of
written demand from Lessee, so long as all of the conditions set forth in this
Section 12 are met on the date of release.

        (b)     Lessee shall have the right to require either Collateral Agent
to release to Lessee any Liquid Collateral held in the related Account upon
delivery by Lessee to such Collateral Agent of such additional Permitted
Investments as is necessary so that after giving effect to the release of the
released Liquid Collateral and the delivery of the additional Liquid Collateral,
the Fair Market Value or Adjusted Market Value, whichever is applicable, of the
Liquid Collateral held in such Account shall remain equal to or greater than the
Required Liquid Collateral Amount for such date applicable to such Account.

                                      100
<PAGE>

                                                         PARTICIPATION AGREEMENT

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                            [SIGNATURE PAGES FOLLOW]

                                      101
<PAGE>

                                                         PARTICIPATION AGREEMENT

        IN WITNESS WHEREOF, the parties hereto have caused this PARTICIPATION
AGREEMENT to be duly executed by their respective officers thereto duly
authorized as of the day and year first above written.

                                HUMAN GENOME SCIENCES, INC., as Lessee
                                and Construction Agent

                                By  /s/ STEVEN C. MAYER
                                  -----------------------------------
                                  Name:  Steven C. Mayer
                                  Title: Senior Vice President and CFO

                                      S-1

<PAGE>

                                                         PARTICIPATION AGREEMENT

                                GENOME STATUTORY TRUST 2001A, as Lessor

                                By:   Wells Fargo Bank Northwest, N.A., not in
                                      its individual capacity except as
                                      specifically set forth herein, but solely
                                      as Trustee

                                By   /s/ C. SCOTT NIELSON
                                  -----------------------------------
                                  Name:  C. Scott Nielson
                                  Title: Vice President

                                      S-2
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                WELLS FARGO BANK NORTHWEST, N.A., not in its
                                individual capacity except as specifically set
                                forth herein, but solely as Trustee and Trust
                                Company

                                By  /s/ C. SCOTT NIELSON
                                  -----------------------------------
                                  Name:  C. Scott Nielson
                                  Title: Vice President

                                      S-3
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                BANCBOSTON LEASING INVESTMENTS INC., as an
                                Investor

                                By  /s/ STEVEN CRISCIONE
                                  -----------------------------------
                                  Name:  Steven Criscione
                                  Title: Vice President

                                      S-4
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                FIRST UNION NATIONAL BANK, as an Investor

                                By /s/ BARBARA K. ANGEL
                                  -----------------------------------
                                  Name:  Barbara Kaufmann Angel
                                  Title: Vice President

                                      S-5
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                EAGLEFUNDING CAPITAL CORPORATION,
                                as a Lender

                                By  /s/ THOMAS M. CALHOUN
                                  -----------------------------------
                                  Name:  Thomas M. Calhoun
                                  Title: Director, its attorney-in-fact

                                      S-6
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                FLEET SECURITIES, INC., as Administrator of
                                EagleFunding Capital Corporation

                                By  /s/ THOMAS M. CALHOUN
                                  -----------------------------------
                                  Name:  Thomas M. Calhoun
                                  Title: Director

                                      S-7
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                FLEET NATIONAL BANK, as Fleet Liquidity
                                Provider

                                By  /s/ STEVEN CRISCIONE
                                  -----------------------------------
                                  Name:  Steven Criscione
                                  Title: Vice President

                                      S-8
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                FLEET NATIONAL BANK, as Fleet National Bank
                                Collateral Agent

                                By  /s/ STEVEN CRISCIONE
                                  -----------------------------------
                                  Name:  Steven Criscione
                                  Title: Vice President

                                      S-9
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                FIRST UNION NATIONAL BANK, as First Union
                                Liquidity Provider

                                By  /s/ BARBARA K. ANGEL
                                  -----------------------------------
                                  Name:  Barbara Kaufmann Angel
                                  Title: Vice President

                                      S-10
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                FIRST UNION NATIONAL BANK, as First Union
                                Collateral Agent

                                By  /s/ BARBARA K. ANGEL
                                  -----------------------------------
                                  Name:  Barbara Kaufmann Angel
                                  Title: Vice President

                                      S-11
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                FLEET NATIONAL BANK, as Administrative Agent
                                and Liquidity Agent

                                By  /s/ STEVEN CRISCIONE
                                  -----------------------------------
                                  Name:  Steven Criscione
                                  Title: Vice President

                                      S-12
<PAGE>

                                                         PARTICIPATION AGREEMENT

                                TRAVILLE LLC, as Ground Lessor

                                By /s/ STEVEN C. MAYER
                                  -----------------------------------
                                  Name:  Steven C. Mayer
                                  Title: Senior Vice President and CFO

                                      S-13

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