Document:

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                        Exhibit 4.2

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       MORGAN STANLEY DEAN WITTER SELECT EQUITY TRUST
            SELECT 5 INDUSTRIAL PORTFOLIO 2000-3
                 REFERENCE TRUST AGREEMENT

       This Reference Trust Agreement dated             , 2000
between DEAN WITTER REYNOLDS INC., as Depositor, and The Chase
Manhattan Bank, as Trustee, sets forth certain provisions in full
and incorporates other provisions by reference to the document
entitled "Sears Equity Investment Trust, Trust Indenture and
Agreement" dated January 22, 1991, as amended on March 16, 1993
and July 18, 1995 (the "Basic Agreement").  Such provisions as
are incorporated by reference constitute a single instrument (the
"Indenture").

                      WITNESSETH THAT:

       In consideration of the premises and of the mutual
agreements herein contained, the Depositor and the Trustee agree
as follows:

                             I.

           STANDARD TERMS AND CONDITIONS OF TRUST

       Subject to the provisions of Part II hereof, all the
provisions contained in the Basic Agreement are herein incorpo-
rated by reference in their entirety and shall be deemed to be a
part of this instrument as fully and to the same extent as though
said provisions had been set forth in full in this instrument ex-
cept that the Basic Agreement is hereby amended in the following
manner:

       A.   Article I, Section 1.01, paragraph (29) defining
  "Trustee" shall be amended as follows:

       "'Trustee' shall mean The Chase Manhattan Bank, or any
       successor trustee appointed as hereinafter provided."

       B.   Reference to United States Trust Company of New
  York in its capacity as Trustee is replaced by The Chase
  Manhattan Bank throughout the Basic Agreement.

       C.   Reference to "Dean Witter Select Equity Trust" is
  replaced by "Morgan Stanley Dean Witter Select Equity
  Trust".

       D.   Section 3.01 is amended to substitute the follow-
  ing:

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          Section 3.01.  Initial Cost  The costs of organizing
  the Trust and sale of the Trust Units shall, to the extent
  of the expenses reimbursable to the Depositor provided be-
  low, be borne by the Unit Holders, provided, however, that,
  to the extent all of such costs are not borne by Unit Hold-
  ers, the amount of such costs not borne by Unit Holders
  shall be borne by the Depositor and, provided further, how-
  ever, that the liability on the part of the Depositor under
  this section shall not include any fees or other expenses
  incurred in connection with the administration of the Trust
  subsequent to the deposit referred to in Section 2.01.  Upon
  notification from the Depositor that the primary offering
  period is concluded, the Trustee shall withdraw from the Ac-
  count or Accounts specified in the Prospectus or, if no Ac-
  count is therein specified, from the Principal Account, and
  pay to the Depositor the Depositor's reimbursable expenses
  of organizing the Trust and sale of the Trust Units in an
  amount certified to the Trustee by the Depositor.  If the
  balance of the Principal Account is insufficient to make
  such withdrawal, the Trustee shall, as directed by the De-
  positor, sell Securities identified by the Depositor, or
  distribute to the Depositor Securities having a value, as
  determined under Section 4.01 as of the date of distribu-
  tion, sufficient for such reimbursement.  The reimbursement
  provided for in this section shall be for the account of the
  Unitholders of record at the conclusion of the primary of-
  fering period and shall not be reflected in the computation
  of the Unit Value prior thereto.  As used herein, the De-
  positor's reimbursable expenses of organizing the Trust and
  sale of the Trust Units shall include the cost of the ini-
  tial preparation and typesetting of the registration state-
  ment, prospectuses (including preliminary prospectuses), the
  indenture, and other documents relating to the Trust, SEC
  and state blue sky registration fees, the cost of the ini-
  tial valuation of the portfolio and audit of the Trust, the
  initial fees and expenses of the Trustee, and legal and
  other out-of-pocket expenses related thereto, but not in-
  cluding the expenses incurred in the printing of preliminary
  prospectuses and prospectuses, expenses incurred in the
  preparation and printing of brochures and other advertising
  materials and any other selling expenses.  Any cash which
  the Depositor has identified as to be used for reimbursement
  of expenses pursuant to this Section shall be reserved by
  the Trustee for such purpose and shall not be subject to
  distribution or, unless the Depositor otherwise directs,
  used for payment of redemptions in excess of the per-Unit
  amount allocable to Units tendered for redemption.

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                                 II.

              SPECIAL TERMS AND CONDITIONS OF TRUST

       The following special terms and conditions are hereby
agreed to:

       A.   The Trust is denominated Morgan Stanley Dean Wit-
ter Select Equity Trust Select 5 Industrial Portfolio 2000-3 (the
"Select 5 Trust").

       B.   The publicly traded stocks listed in Schedule A
hereto are those which, subject to the terms of this Indenture,
have been or are to be deposited in trust under this Indenture.

       C.   The term, "Depositor" shall mean Dean Witter Rey-
nolds Inc.

       D.   The aggregate number of Units referred to in Sec-
tions 2.03 and 9.01 of the Basic Agreement is       for the Se-
lect 5 Trust.

       E.   A Unit is hereby declared initially equal to
1/     th for the Select 5 Trust.

       F.   The term "In-Kind Distribution Date" shall mean
        , 2001.

       G.   The term "Record Dates" shall mean          ,
2000,           , 2000,            , 2001 and         , 2001 and
such other date as the Depositor may direct.

       H.   The term "Distribution Dates shall mean         ,
2000,          , 2000,           , 2001 and             , 2001
and such other date as the Depositor may direct.

       I.   The term "Termination Date" shall mean           ,
2001.

       J.   The Depositor's Annual Portfolio Supervision Fee
shall be a maximum of $0.25 per 100 Units.

       K.   The Trustee's annual fee as defined in Section
6.04 of the Indenture shall be $     per 100 Units if the great-
est number of Units outstanding during the period is 10,000,000
or more; $      per 100 Units if the greatest number of Units
outstanding during the period is between 5,000,000 and 9,999,999;

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and $      per 100 Units if the greatest number of Units out-
standing during the period is 4,999,999 or less.

       L.   For a Unit Holder to receive "in-kind" distribu-
tion during the life of the Trust other than in connection with a
rollover, such Unit Holder must tender at least 25,000 Units for
redemption.  On the In-Kind Date there is no minimum amount of
Units that a Unit Holder must tender in order to receive an
"in-kind" distribution.

       M.   Paragraph (b)(ii) of Section 9.03 is amended to
provide that the period during which the Trustee shall liquidate
the Trust Securities shall not exceed 14 business days commencing
on the first business day following the In-Kind Date.

     (Signatures and acknowledgments on separate pages)Exhibit 10.8

                      SIXTH AMENDMENT TO AGREEMENT OF LEASE

         THIS SIXTH AMENDMENT is made this 29th day of October, 1999, by and
between ROUSE AND ASSOCIATES - 7 GREAT VALLEY PARKWAY LIMITED PARTNERSHIP, a
Pennsylvania limited partnership ("Landlord") and TANGRAM ENTERPRISE SOLUTIONS
formerly known as RABBIT SOFTWARE CORPORATION, a Pennsylvania Corporation
("Tenant").
                                   BACKGROUND:

         A. Landlord and Tenant entered into a Lease Agreement dated February
17, 1986 as amended by First Amendment to Agreement of Lease dated June 13,
1986, and a Second Amendment to Agreement of Lease dated June 1, 1989, as
amended by Third Amendment to Agreement of Lease dated October 12, 1992, as
amended by a Fourth Amendment to Agreement of Lease dated January 28, 1997, as
amended by a Fifth Amendment to Agreement of Lease dated March 10, 1997 (the
"Lease"), covering certain premises at 7 Great Valley Parkway, Suite 300,
Malvern, Pennsylvania, as more fully describe in the Lease (the "Premises").

         B. Whereas Tenant desires to extend the Term of this Lease and Landlord
has agreed to such extension subject to the provisions of this Amendment.
Accordingly, Landlord and Tenant desire to amend the Lease.

         NOW, THEREFORE, the parties hereto, in consideration of the mutual
promises and covenants contained herein and in the Lease, and intending to be
legally bound hereby agree that the Lease is amended as follows:

1. Article 3 of the Lease entitled "Term" is amended by deleting the reference
to "February 29, 2000" and inserting "February 28, 2003" in its place.

2. Article 5(a) of the Lease entitled "Minimum Annual Rent" is hereby amended by
inserting the following minimum rent schedule:

                                               Annually       Monthly
                                               --------       -------
         March 1, 2000 - February 28, 2001  $  129,780.00   $  10,815.00
         March 1, 2001 - February 28, 2002     133,488.00      11,124.00
         March 1, 2002 - February 28, 2003     137,196.00      11,433.00

3. Except as expressly modified herein, the terms and conditions of the Lease
shall remain unchanged and in full force and effect.

IN WITNESS WHEREOF, Landlord and Tenant have executed this Amendment as of the
day and year first above written.

LANDLORD:
ROUSE & ASSOCIATES - 7 GREAT VALLEY PARKWAY LIMITED PARTNERSHIP
By:      Liberty Property Trust, Sole General Partner

By:      /s/ Leslie R. Price
         -------------------
Name:    Leslie R. Price
Title:   Senior Vice President

TENANT:
TANGRAM ENTERPRISE SOLUTIONS, INC.
By:      /s/ Nancy M. Dunn                  WITNESS: /s/ Jeanann Agioglassitis
         -----------------                           -------------------------
Name:    Nancy M. Dunn                      Name:
Title:   Senior V.P. - Legal                Title:

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