Exhibit 4.1

                                SERIES SUPPLEMENT

                       CORPORATE BACKED TRUST CERTIFICATES

                      AT&T NOTE-BACKED SERIES 2001-33 TRUST

                                     between

                             LEHMAN ABS CORPORATION,

                                  as Depositor

                                       and

                      U.S. BANK TRUST NATIONAL ASSOCIATION,

                                   as Trustee

                       CORPORATE BACKED TRUST CERTIFICATES

                          Dated as of September 5, 2001


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                                Table of Contents

                                                                            Page
                                                                            ----

SECTION 1.   INCORPORATION OF STANDARD TERMS...................................1

SECTION 2.   DEFINITIONS.......................................................1

SECTION 3.   DESIGNATION OF TRUST AND CERTIFICATES.............................7

SECTION 4.   TRUST CERTIFICATES................................................8

SECTION 5.   DISTRIBUTIONS.....................................................8

SECTION 6.   TRUSTEE'S FEES...................................................10

SECTION 7.   OPTIONAL EXCHANGE; OPTIONAL CALL.................................11

SECTION 8.   NOTICES OF EVENTS OF DEFAULT.....................................13

SECTION 9.   MISCELLANEOUS....................................................13

SECTION 10.  GOVERNING LAW....................................................16

SECTION 11.  COUNTERPARTS.....................................................16

SECTION 12.  TERMINATION OF THE TRUST.........................................16

SECTION 13.  SALE OF UNDERLYING SECURITIES; OPTIONAL EXCHANGE.................16

SECTION 14.  AMENDMENTS.......................................................16

SECTION 15.  VOTING OF UNDERLYING SECURITIES, MODIFICATION OF INDENTURE.......17

SECTION 16.  ADDITIONAL DEPOSITOR REPRESENTATION..............................18

SCHEDULE I   SERIES 2001-33 UNDERLYING SECURITIES SCHEDULE
SCHEDULE II  CLASS A-2 CERTIFICATE CALL SCHEDULE
EXHIBIT A-1  FORM OF TRUST CERTIFICATE CLASS A-1
EXHIBIT A-2  FORM OF TRUST CERTIFICATE CLASS A-2
EXHIBIT B    FORM OF WARRANT AGENT AGREEMENT
EXHIBIT C    FORM OF INVESTMENT LETTER



<PAGE>



                                SERIES SUPPLEMENT

                       CORPORATE BACKED TRUST CERTIFICATES

                      AT&T NOTE-BACKED SERIES 2001-33 TRUST

                                     between

                             LEHMAN ABS CORPORATION,

                                  as Depositor

                                       and

                      U.S. BANK TRUST NATIONAL ASSOCIATION,

                                   as Trustee

                       CORPORATE BACKED TRUST CERTIFICATES

                          Dated as of September 5, 2001


<PAGE>


                                Table of Contents

                                                                            Page
                                                                            ----

Section 1.  Incorporation of Standard Terms....................................1

Section 2.  Definitions........................................................1

Section 3.  Designation of Trust and Certificates..............................7

Section 4.  Trust Certificates.................................................8

Section 5.  Distributions.      ...............................................8

Section 6.  Trustee's Fees....................................................10

Section 7.  Optional Exchange; Optional Call..................................11

Section 8.  Notices of Events of Default......................................13

Section 9.  Miscellaneous.....................................................13

Section 10. Governing Law.....................................................16

Section 11. Counterparts......................................................16

Section 12. Termination of the Trust..........................................16

Section 13. Sale of Underlying Securities; Optional Exchange..................16

Section 14. Amendments........................................................16

Section 15. Voting of Underlying Securities, Modification of Indenture........17

Section 16. Additional Depositor Representation...............................18


SCHEDULE I  SERIES 2001-33 UNDERLYING SECURITIES SCHEDULE
SCHEDULE II CLASS A-2 CERTIFICATE CALL SCHEDULE
EXHIBIT A-1 FORM OF TRUST CERTIFICATE CLASS A-1
EXHIBIT A-2 FORM OF TRUST CERTIFICATE CLASS A-2
EXHIBIT B   FORM OF WARRANT AGENT AGREEMENT
EXHIBIT C   FORM OF INVESTMENT LETTER


<PAGE>

                                                                     Exhibit 4.1

                                SERIES SUPPLEMENT

                       CORPORATE BACKED TRUST CERTIFICATES

                      AT&T Note-Backed Series 2001-33 TRUST

                  SERIES SUPPLEMENT, AT&T Note-Backed Series 2001-33, dated as
of September 5, 2001 (the "Series Supplement"), by and between LEHMAN ABS
CORPORATION, as Depositor (the "Depositor"), and U.S. BANK TRUST NATIONAL
ASSOCIATION, as Trustee (the "Trustee").

                              W I T N E S S E T H:

                  WHEREAS, the Depositor desires to create the Trust designated
herein (the "Trust") by executing and delivering this Series Supplement, which
shall incorporate the terms of the Standard Terms for Trust Agreements, dated as
of January 16, 2001 (the "Standard Terms"; together with this Series Supplement,
the "Trust Agreement"), by and between the Depositor and the Trustee, as
modified by this Series Supplement;

                  WHEREAS, the Depositor desires to deposit into the Trust the
Underlying Securities set forth on Schedule I attached hereto (the "Underlying
Securities Schedule"), the general terms of which are described in the
Prospectus Supplement under the heading "Description of the Deposited Assets -
Underlying Securities;"

                  WHEREAS, in connection with the creation of the Trust and the
deposit therein of the Underlying Securities, it is desired to provide for the
issuance of trust certificates (the "Certificates") evidencing undivided
interests in the Trust; and

                  WHEREAS, the Trustee has joined in the execution of the
Standard Terms and this Series Supplement to evidence the acceptance by the
Trustee of the Trust;

                  NOW, THEREFORE, in consideration of the foregoing premises and
the mutual covenants expressed herein, it is hereby agreed by and between the
Depositor and the Trustee as follows:

                  Section 1. Incorporation of Standard Terms. Except as
otherwise provided herein, all of the provisions of the Standard Terms are
hereby incorporated herein by reference in their entirety, and this Series
Supplement and the Standard Terms shall form a single agreement between the
parties. In the event of any inconsistency between the provisions of this Series
Supplement and the provisions of the Standard Terms, the provisions of this
Series Supplement will control with respect to the AT&T Note-Backed Series
2001-33 Certificates and the transactions described herein.

                  Section 2. Definitions. 1. Except as otherwise specified
herein or as the context may otherwise require, the following terms shall have
the respective meanings set forth below for all purposes under this Series
Supplement. (Section 2(b) below sets forth terms listed in the Standard Terms
which are not applicable to this Series.) Capitalized terms used but not defined
herein shall have the meanings assigned to them in the Standard Terms.

<PAGE>


                  "Accreted Principal Amount" for the Class A-2 Certificates
means for each six month period from and including each date specified in
Schedule II hereof to but excluding the next such date, the amount specified in
Schedule II as the "Ending Balance" for such beginning date.

                  "Available Funds" shall have the meaning specified in the
Standard Terms, except that proceeds of any redemption of the Underlying
Securities shall be included in Available Funds.

                  "Business Day" shall mean any day other than (i) Saturday and
Sunday or (ii) a day on which banking institutions in New York City, New York
are authorized or obligated by law or executive order to be closed for business
or (iii) a day that is not a business day for the purposes of the Indenture.

                  "Call Date" shall mean any Business Day on or after September
5, 2006, or after the announcement of any unscheduled payment on the Underlying
Securities on which the Call Warrants are exercised and the proceeds of an
Optional Call are distributed to holders of the Certificates pursuant to Section
7 hereof.

                  "Call Notice" shall have the meaning specified in Section 1.1
of the Warrant Agent Agreement.

                  "Call Price" shall mean, for each related Call Date, (i) in
the case of the Class A-1 Certificates, the par value of the Class A-1
Certificates being purchased pursuant to the exercise of the Call Warrants, plus
any accrued and unpaid interest on such amount to but excluding the Call Date
and (ii) in the case of the Class A-2 Certificates being purchased pursuant to
the exercise of the Call Warrants, the Accreted Principal Amount of the Class
A-2 Certificates

                  "Call Request" shall have the meaning specified in Section
7(b) hereof.

                  "Call Warrants" shall have the meaning specified in Section 3
hereof.

                  "Certificate Account" shall have the meaning specified in the
Standard Terms.

                  "Certificate Principal Amount" shall have the meaning
specified in Section 3 hereof.

                  "Certificates" shall have the meaning specified in Section 3
hereof.

                  "Class A-1 Allocation" shall mean the sum of the present
values (discounted at the rate of 7.25% per annum) of (i) any unpaid interest
due or to become due on the Class A-1 Certificates and (ii) the outstanding
principal amount of the Class A-1 Certificates (in each case assuming that the
Class A-1 Certificates were paid when due and were not redeemed prior to their
stated maturity).

                  "Class A-1 Certificates" shall mean the Certificates, in the
form attached hereto as Exhibit A-1, to be issued by the Trust representing a
proportionate undivided beneficial


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<PAGE>


ownership interest in certain distributions to be made by the Trust and having
the characteristics described herein and in the Certificates.

                  "Class A-2 Allocation" shall mean the present value
(discounted at the rate of 7.25% per annum) of any unpaid principal amounts due
or to become due on the Class A-2 Certificates (assuming that the Class A-2
Certificates were paid when due and were not redeemed prior to their stated
maturity).

                  "Class A-2 Certificates" shall mean the Certificates, in the
form attached hereto as Exhibit A-2, to be issued by the Trust representing a
proportionate undivided beneficial ownership interest in certain distributions
to be made by the Trust and having the characteristics described herein and in
the Certificates.

                  "Closing Date" shall mean September 5, 2001.

                  "Collection Period" shall mean, (i) with respect to each
September Distribution Date, the period beginning on the day after the March
Distribution Date of such year and ending on such September Distribution Date,
inclusive and, (ii) with respect to each March Distribution Date, the period
beginning on the day after the September Distribution Date of the prior year and
ending on such March Distribution Date, inclusive; provided, however, that
clauses (i) and (ii) shall be subject to Section 9(f) hereof.

                  "Corporate Trust Office" shall mean the office of U.S. Bank
Trust National Association located at 100 Wall Street, New York, New York 10005.

                  "Currency" shall mean United States Dollars.

                  "Depository" shall mean The Depository Trust Company.

                  "Distribution Date" shall mean September 15th and March 15th
of each year (or if such date is not a Business Day, the next succeeding
Business Day), commencing on September 15th, 2001 and ending on the earlier of
the Final Scheduled Distribution Date and any date on which Underlying
Securities are redeemed pursuant to the Indenture.

                  "Eligible Account" shall have the meaning specified in the
Standard Terms.

                  "Event of Default" shall mean (i) a default in the payment of
any interest on any Underlying Security after the same becomes due and payable
(subject to any applicable grace period), (ii) a default in the payment of the
principal of or any installment of principal of any Underlying Security when the
same becomes due and payable, and (iii) any other event specified as an "Event
of Default" in the Indenture.

                  "Exchange Act" shall mean the Securities and Exchange Act of
1934, as amended, and the rules and regulations promulgated thereunder.

                  "Extraordinary Trust Expenses" shall have the meaning
specified in the Standard Terms.


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<PAGE>


                  "Final Scheduled Distribution Date" shall mean March 15, 2029.

                  "Indenture" shall mean the indenture pursuant to which the
Underlying Securities were issued.

                  "Interest Accrual Period" shall mean for any Distribution
Date, the period from and including the preceding Distribution Date (or in the
case of the first Interest Accrual Period, from and including September 5, 2001)
to but excluding the current Distribution Date.

                  "Liquidation Price" shall mean the price at which the Trustee
sells the Underlying Securities.

                  "Liquidation Proceeds" shall have the meaning specified in the
Standard Terms.

                  "Maturity Date" shall have the meaning specified in Schedule I
hereto.

                  "Moody's" shall mean Moody's Investors Service, Inc.

                  "Optional Call" shall mean the call of the Certificates by the
Warrant Holder, in whole or in part, resulting from the exercise of Call
Warrants by the Warrant Holder, pursuant to Section 7(b) hereof.

                  "Optional Exchange" shall mean the exchange of the
Certificates by the Trust for the Underlying Securities pursuant to Section 7(a)
hereof.

                  "Optional Exchange Date" shall mean any Distribution Date on
which Underlying Securities subject to Optional Exchange are distributed to a
Certificateholder.

                  "Ordinary Expenses" shall mean the Trustee's ordinary expenses
and overhead in connection with its services as Trustee, including the items
referred to in the definition of Ordinary Expenses in the Standard Terms.

                  "Prepaid Ordinary Expenses" shall be zero for this Series.

                  "Prospectus Supplement" shall mean the Prospectus Supplement,
dated August 27, 2001, relating to the Certificates.

                  "Rating Agency" shall mean Moody's and S&P.

                  "Rating Agency Condition" shall have the meaning specified in
the Standard Terms.

                  "Record Date" shall mean, with respect to each Distribution
Date, the day immediately preceding the related Distribution Date.

                  "Required Interest" shall have the meaning specified in the
Standard Terms.

                  "Required Percentage-Amendment" shall be 66-2/3% of the
aggregate Voting Rights, unless the subject amendment requires the vote of
holders of only one class of


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Certificates pursuant to the Standard Terms, in which case 66-2/3% of the
Certificate Principal Amount of such Class.

                  "Required Percentage-Direction of Trustee" shall be 66-2/3% of
the aggregate Voting Rights.

                  "Required Percentage-Remedies" shall be 66-2/3% of the
aggregate Voting Rights.

                  "Required Percentage-Removal" shall be 66-2/3% of the
aggregate Voting Rights.

                  "Required Rating" shall mean, in the case of Moody's, the
rating assigned to the Underlying Securities by Moody's as of the Closing Date,
and, in the case of S&P, the rating assigned to the Underlying Securities by S&P
as of the Closing Date.

                  "S&P" shall mean Standard & Poor's Ratings Services, a
division of The McGraw-Hill Companies, Inc.

                  "Series" shall mean AT&T Note-Backed Series 2001-33.

                  "Tax Event" shall have the meaning specified in the Prospectus
Supplement.

                  "Trustee Fee" shall mean the amount paid to the Trustee by the
Depositor on the Closing Date.

                  "Trust Property" shall mean the Underlying Securities
described on Schedule I hereto and the Certificate Account.

                  "Underlying Securities" shall mean $32,885,000 aggregate
principal amount of 6.50% Notes due March 15, 2029 issued by the Underlying
Securities Issuer, as set forth in Schedule I attached hereto (subject to
Section 3(d) hereof).

                  "Underlying Securities Issuer" shall mean AT&T Corp. and any
successor in respect of the Underlying Securities.

                  "Underlying Securities Trustee" shall mean The Bank of New
York.

                  "Underwriters" shall mean Lehman Brothers Inc., an affiliate
of the Depositor, and Prudential Securities Incorporated.

                  "Voting Rights" shall, in the entirety, be allocated among all
Class A-1 Certificateholders and Class A-2 Certificateholders in proportion to
the then unpaid principal amounts of their respective Certificates.

                  "Warrant Agent" shall mean initially, U.S. Bank Trust National
Association.

                  "Warrant Agent Agreement" shall mean that certain Warrant
Agent Agreement, dated as of the date hereof, between the Depositor and U.S.
Bank Trust National Association, as Warrant Agent and as Trustee, as the same
may be amended from time to time.


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<PAGE>


                  "Warrant Holder" shall mean the holder of a Call Warrant.

         (b) The terms listed below are not applicable to this Series.

                           "Accounting Date"

                           "Administrative Fees"

                           "Advance"

                           "Allowable Expense Amounts"

                           "Basic Documents"

                           "Calculation Agent"

                           "Call Premium Percentage"

                           "Credit Support"

                           "Credit Support Instrument"

                           "Credit Support Provider"

                           "Cut-off Date"

                           "Eligible Expense"

                           "Eligible Investment"

                           "Exchange Rate Agent"

                           "Fixed Pass-Through Rate"

                           "Floating Pass-Through Rate"

                           "Guaranteed Investment Contract"

                           "Letter of Credit"

                           "Limited Guarantor"

                           "Limited Guaranty"

                           "Minimum Wire Denomination"

                           "Notional Amount"

                           "Pass-Through Rate"


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<PAGE>


                           "Place of Distribution"

                           "Purchase Price"

                           "Required Premium"

                           "Required Principal"

                           "Requisite Reserve Amount"

                           "Retained Interest"

                           "Sale Procedures"

                           "Sub-Administration Account"

                           "Sub-Administration Agreement"

                           "Sub-Administration Agent"

                           "Surety Bond"

                           "Swap Agreement"

                           "Swap Counterparty"

                           "Swap Distribution Amount"

                           "Swap Guarantee"

                           "Swap Guarantor"

                           "Swap Receipt Amount"

                           "Swap Termination Payment"

                  Section 3. Designation of Trust and Certificates. The Trust
created hereby shall be known as the "Corporate-Backed Trust Certificates, AT&T
Note-Backed Series 2001-33 Trust." The Certificates evidencing certain undivided
ownership interests therein shall be known as "Corporate Backed Trust
Certificates, AT&T Note-Backed Series 2001-33." The Certificates shall consist
of the Class A-1 Certificates and the Class A-2 Certificates (together, the
"Certificates"). The Trust is also issuing call warrants with respect to the
Certificates ("Call Warrants").

                  (a) The Certificates shall be held through the Depository in
book-entry form and shall be substantially in the forms attached hereto as
Exhibits A-1 and A-2. The Class A-1 Certificates shall be issued in
denominations of $25. The Class A-2 Certificates shall be issued in minimum
denominations of $500,000 and integral multiples of $1,000 in excess thereof.


                                       7
<PAGE>


Except as provided in the Standard Terms and in paragraph (d) in this Section,
the Trust shall not issue additional Certificates or incur any indebtedness.

                  (b) The Class A-1 Certificates have an initial aggregate
certificate principal amount of $29,483,100, and the Class A-2 Certificates have
an initial aggregate certificate principal amount of $3,401,900 (each, a
"Certificate Principal Amount").

                  (c) The holders of the Class A-1 Certificates will be entitled
to receive on each Distribution Date the interest, if any, received on the
Underlying Securities, to the extent necessary to pay interest at a rate of
7.25% per annum on the outstanding Certificate Principal Amount of the Class A-1
Certificates. The Class A-2 Certificates shall not bear interest. On September
15, 2001, the Trustee will pay to the Depositor the amount of interest accrued
and paid on the Underlying Securities from March 15, 2001 to but not including
the Closing Date. If Available Funds are insufficient to pay such amount, the
Trustee will pay the Depositor its pro rata share, based on the ratio the amount
owed to the Depositor bears to all amounts owed on the Class A-1 Certificates in
respect of accrued interest, of any proceeds from the recovery on the Underlying
Securities.

                  (d) The Depositor may sell to the Trustee additional
Underlying Securities on any date hereafter upon at least 3 Business Days notice
to the Trustee (or such shorter period as shall be mutually satisfactory to the
Depositor and the Trustee) and upon (i) satisfaction of the Rating Agency
Condition and (ii) delivery of an Opinion of Counsel to the effect that the sale
of such additional Underlying Securities will not materially increase the
likelihood that the Trust would fail to qualify as a grantor trust under the
Code. Upon such sale to the Trustee, the Trustee shall deposit such additional
Underlying Securities in the Certificate Account, and shall authenticate and
deliver to the Depositor, on its order, Class A-1 Certificates and Class A-2
Certificates in the same proportion as the original Class A-1 Certificates and
Class A-2 Certificates, with an aggregate Certificate Principal Amount equal to
the principal amount of such additional Underlying Securities, and the Call
Warrants related thereto. Any such additional Class A-1 Certificates and Class
A-2 Certificates authenticated and delivered shall have the same terms and rank
pari passu with the corresponding classes of Certificates previously issued in
accordance with this Series Supplement.

                  (e) As a condition precedent for transferring the Call
Warrants, the prospective transferee shall be required to deliver to the Trustee
and the Depositor an executed copy of the Investment Letter (set forth in
Exhibit C hereto).

                  Section 4. Trust Certificates. The Trustee hereby acknowledges
receipt, on or prior to the Closing Date, of:

                  (i)      the Underlying Securities set forth on the Underlying
                           Securities Schedule; and

                  (ii)     all documents required to be delivered to the Trustee
                           pursuant to Section 2.01 of the Standard Terms.


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<PAGE>


                  Section 5. Distributions. (a) Except as otherwise provided in
Section 3(c), on each applicable Distribution Date, the Trustee shall apply
Available Funds in the Certificate Account as follows in the following order of
priority:

                  (i)      the Trustee will pay the interest portion of
                           Available Funds (subject to Section 5(b) below):

                           (a) first, to the Trustee, as reimbursement for any
                           Extraordinary Trust Expenses incurred by the Trustee
                           in accordance with Section 6(b) below and approved by
                           100% of the Certificateholders; and

                           (b) second, to the holders of the Class A-1
                           Certificates, as interest at the rate of 7.25% per
                           annum on the principal amount of the Class A-1
                           Certificates.

                  (ii)     the Trustee will pay the principal portion of
                           Available Funds:

                           (a) first, to the Trustee, as reimbursement for any
                           remaining Extraordinary Trust Expenses incurred by
                           the Trustee in accordance with Section 6(b) below and
                           approved by 100% of the Certificateholders; and

                           (b) second, to the holders of the Class A-1
                           Certificates and the Class A-2 Certificates, the
                           remaining available principal portion of Available
                           Funds (in an aggregate amount not to exceed the
                           outstanding principal amount of the Class A-1
                           Certificates and the Class A-2 Certificates) pro rata
                           in the proportion that the outstanding principal
                           amount of the Class A-1 Certificates bears to the
                           outstanding principal amount of the Class A-2
                           Certificates.

                  (iii)    any Available Funds remaining in the Certificate
                           Account after the payments set forth in clauses
                           5(a)(i) and 5(a)(ii) above shall be paid to the
                           Trustee as reasonable compensation for services
                           rendered to the Depositor, any remainder up to
                           $1,000.

                  (iv)     the Trustee will pay any Available Funds remaining in
                           the Certificate Account after the distributions in
                           clauses 5(a)(i) through 5(a)(iii) above to the
                           holders of the Class A-1 Certificates and Class A-2
                           Certificates pro rata in proportion to their original
                           principal balances.

                  (b) Notwithstanding any other provision hereof (other than
Section 3(c)) if the Underlying Securities are redeemed, prepaid or liquidated
in whole or in part for any reason (including a Tax Event) other than if the
Underlying Securities Issuer stops filing the periodic reports required under
the Exchange Act or at their maturity, the Trustee shall apply Available Funds
in the manner described in Section 5(f) in the following order of priority:

                  (i)      first, to the Trustee, as reimbursement for any
                           Extraordinary Trust Expenses incurred by the Trustee
                           in accordance with Section 6(b) below and approved by
                           100% of the Certificateholders;


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<PAGE>


                  (ii)     second, to the holders of the Class A-1 Certificates,
                           an amount equal to any accrued and unpaid interest
                           thereon;

                  (iii)    third, to the holders of the Class A-1 Certificates
                           and Class A-2 Certificates, pro rata in the
                           proportion that the outstanding principal amount of
                           the Class A-1 Certificates bears to the outstanding
                           principal amount of the Class A-2 Certificates;

                  (iv)     fourth, to the Trustee, as reasonable compensation
                           for services rendered to the Depositor, any remainder
                           up to $1,000; and

                  (v)      fifth, to the holders of the Class A-1 Certificates
                           and Class A-2 Certificates, any amount remaining
                           after the distributions in clauses 5(b)(i) through
                           5(b)(iv) above, pro rata in proportion to their
                           original principal balances.

                  (c) Unless otherwise instructed by holders of Certificates
representing a majority of the Voting Rights, thirty (30) days after giving
notice pursuant to Section 8 hereof, the Trustee shall sell the Underlying
Securities pursuant to Section 13 hereof and deposit the Liquidation Proceeds,
if any, into the Certificate Account for distribution not later than two (2)
Business Days after the receipt of immediately available funds in accordance
with Section 5(b) hereof.

                  (d) If the Trustee receives non-cash property in respect of
the Underlying Securities as a result of a payment default on the Underlying
Securities (including from the sale thereof), the Trustee will promptly give
notice to the Depository, or for any Certificates which are not then held by DTC
or any other depository, directly to the registered holders of the Certificates
then outstanding and unpaid. Such notice shall state that the Trustee shall and
the Trustee shall, not later than 30 days after the receipt of such property,
allocate and distribute such property to the holders of Class A-1 Certificates
and Class A-2 Certificates then outstanding and unpaid, pro rata by principal
amount (after deducting the costs incurred in connection therewith) in
accordance with Section 5(b) hereof. Property other than cash will be liquidated
by the Trustee, and the proceeds thereof distributed in cash, only to the extent
necessary to avoid distribution of fractional securities to Certificateholders.
In-kind distribution of such property to Certificateholders will be deemed to
reduce the principal amount of Certificates on a dollar-for-dollar basis.

                  (e) Subject to Section 9(f) hereof, to the extent Available
Funds are insufficient to make any required distributions due to any class of
Certificates on any Distribution Date, any shortfall will be carried over and
will be distributed on the next Distribution Date (or date referred to in
Section 5(f) hereof) on which sufficient funds are available to pay such
shortfall.

                  (f) If a payment with respect to the Underlying Securities is
made to the Trustee (i) after the payment date of the Underlying Securities on
which such payment was due or (ii) after the Underlying Securities are redeemed,
prepaid or liquidated in whole or in part for any reason (including a Tax Event)
other than at their maturity, then the Trustee will distribute any such amounts
received on the next occurring Business Day (a "Special Distribution Date") as
if the funds had constituted Available Funds on the Distribution Date
immediately preceding such


                                       10
<PAGE>


Special Distribution Date; provided, however, that the Record Date for such
Special Distribution Date shall be the Business Day prior to the day on which
the related payment was received from the Underlying Securities Trustee.

                  (g) Notwithstanding Section 3.12 of the Standard Terms, if the
Underlying Securities Issuer stops filing periodic reports required under the
Exchange Act, the Depositor shall within a reasonable time period instruct the
Trustee to sell the Underlying Securities and allocate the proceeds of such sale
in the following order of priority: (i) to the Trustee, reimbursement for any
remaining Extraordinary Trust Expenses incurred by the Trustee pursuant to the
instructions of all the certificateholders and (ii) to the holders of the Class
A-1 Certificates and the Class A-2 Certificates in accordance with the ratio of
the Class A-1 Allocation to the Class A-2 Allocation; provided, however, that
the Depositor shall not instruct the Trustee to distribute or sell the
Underlying Securities pursuant to this clause unless the Underlying Securities
Issuer has either (x) stated in writing that it intends permanently to cease
filing reports required under the Exchange Act or (y) failed to file any
required reports for one full calendar year.

                  Section 6. Trustee's Fees.

                  (a) As compensation for its services hereunder, the Trustee
shall be entitled to the Trustee Fee and any amount payable under clause
5(a)(iii) or 5(b)(iv) above. The Trustee Fee shall be paid by the Depositor and
not from Trust Property. The Trustee shall bear all Ordinary Expenses. Failure
by the Depositor to pay such amount shall not entitle the Trustee to any payment
or reimbursement from the Trust, nor shall such failure release the Trustee from
the duties it is required to perform under the Trust Agreement.

                  (b) Extraordinary Expenses shall not be paid out of the Trust
Property unless all the holders of the Class A-1 Certificates and Class A-2
Certificates then outstanding have directed the Trustee to incur such
Extraordinary Expenses. The Trustee may incur other Extraordinary Expenses if
any lesser percentage of the Certificateholders requesting such action pursuant
hereto reimburse the Trustee for the cost thereof from their own funds in
advance. If Extraordinary Expenses are not approved unanimously as set forth in
the first sentence of this Section 6(b), such Extraordinary Expenses shall not
be an obligation of the Trust, and the Trustee shall not file any claim against
the Trust therefor notwithstanding failure of Certificateholders to reimburse
the Trustee.

                  Section 7. Optional Exchange; Optional Call.

                  (a) (i) On any Distribution Date, any holder of Class A-1
Certificates and Class A-2 Certificates and the related Call Warrants, if Call
Warrants related to such Certificates are outstanding, may exchange such
Certificates and, if applicable, Call Warrants, for a distribution of Underlying
Securities representing the same percentage of the Underlying Securities as such
Certificates represent of all outstanding Certificates.

                  (ii)     The following conditions shall apply to any Optional
                           Exchange.

                           (a)      A notice specifying the number of
                                    Certificates being surrendered and the
                                    Optional Exchange Date shall be delivered to
                                    the Trustee no less than


                                       11
<PAGE>


                                    5 days (or such shorter period acceptable to
                                    the Trustee) but not more than 30 days
                                    before the Optional Exchange Date.

                                    (b) Certificates and, if applicable, the
                                    Call Warrants, shall be surrendered to the
                                    Trustee no later than 10:00 a.m. (New York
                                    City time) on the Optional Exchange Date.

                                    (c) Class A-1 Certificates and Class A-2
                                    Certificates representing a like percentage
                                    of all Class A-1 Certificates and Class A-2
                                    Certificates shall be surrendered.

                                    (d) The Trustee shall have received an
                                    opinion of counsel stating that the Optional
                                    Exchange would not affect the
                                    characterization of the Trust as a "grantor
                                    trust" for federal income tax purposes.

                                    (e) If the Certificateholder is the
                                    Depositor or any Affiliate of the Depositor,
                                    (1) the Trustee shall have received a
                                    certification from the Certificateholder
                                    that any Certificates being surrendered have
                                    been held for at least six months, and (2)
                                    the Certificates being surrendered may
                                    represent no more than 5% (or 25% in the
                                    case of Certificates acquired by the
                                    Underwriter but never distributed to
                                    investors) of the then outstanding
                                    Certificates.

                           (iii)    The Trustee shall not be obligated to
                                    determine whether an Optional Exchange
                                    complies with the applicable provisions for
                                    exemption under Rule 3a-7 of the Investment
                                    Company Act of 1940, as amended, or the
                                    rules or regulations promulgated thereunder.

                           (iv)     The provisions of Section 4.07 of the
                                    Standard Terms shall not apply to an
                                    Optional Exchange pursuant to this Section
                                    7(a). This Section 7(a) shall not provide
                                    any person with a lien against, an interest
                                    in or a right to specific performance with
                                    respect to the Underlying Securities.

                  (b) (i) Concurrently with the execution of this Series
Supplement, the Trustee, on behalf of the Trust, shall execute the Warrant Agent
Agreement and the Call Warrants, dated as of the date hereof and substantially
in the form of Exhibit B hereto, initially evidencing all of the Call Warrants.
The Trustee shall perform the Trust's obligations under the Warrant Agent
Agreement and the Call Warrants in accordance with their respective terms.

                           (ii)     Call Warrants may be exercised by the
                                    Warrant Holder in whole or in part on any
                                    Call Date. In addition to the conditions set
                                    forth in Section 1.1 of the Warrant Agent
                                    Agreement, the following conditions shall
                                    apply to any Optional Call.

                                    (a) An opinion of counsel to the Warrant
                                    Holder shall have been delivered to the
                                    Rating Agencies, in satisfaction of the
                                    Rating Agency Condition, indicating that
                                    payment of the Call Price shall not be
                                    recoverable as a preferential transfer or
                                    fraudulent conveyance under the United
                                    States


                                       12
<PAGE>


                                    Bankruptcy Code. Such opinion may contain
                                    customary assumptions and qualifications.

                                    (b) The Warrant Holder shall have provided a
                                    certificate of solvency to the Trustee.

                           (iii)    Upon receipt of a Call Notice, the Trustee
                                    shall provide a conditional call notice to
                                    the Depository not less than 3 Business Days
                                    prior to the Call Date.

                           (iv)     Delivery of a Call Notice does not give rise
                                    to an obligation on part of the Warrant
                                    Holder to pay the Call Price. If, by 10:00
                                    a.m. (New York City time) on the Call Date,
                                    the Warrant Holder has not paid the Call
                                    Price, then the Call Notice shall
                                    automatically expire and none of the Warrant
                                    Holder, the Warrant Agent or the Trustee
                                    shall have any obligation with respect to
                                    the Call Notice. The expiration of a Call
                                    Notice shall in no way affect the Warrant
                                    Holder's right to deliver a Call Notice at a
                                    later date.

                           (v)      Subject to receipt of the Call Price, the
                                    Trustee shall pay the Call Price to the
                                    Certificateholders on the Call Date. The
                                    Call Price for a class of Certificates in
                                    respect of partial calls shall be allocated
                                    pro rata to the Certificateholders of such
                                    class.

                           (vi)     The Trustee shall not consent to any
                                    amendment or modification of this Agreement
                                    (including the Standard Terms) which would
                                    alter the timing or amount of any payment of
                                    the Call Price without the prior written
                                    consent of 100% of the Warrant Holders.

                           (vii)    The Trustee shall not be obligated to
                                    determine whether an Optional Call complies
                                    with the applicable provisions for exemption
                                    under Rule 3a-7 of the Investment Company
                                    Act of 1940, as amended, or the rules or
                                    regulations promulgated thereunder.

                           (viii)   This Section 7 shall not provide the Warrant
                                    Holder with a lien against, an interest in
                                    or a right to specific performance with
                                    respect to the Underlying Securities.

                           (ix)     The Warrant Holder shall initially be the
                                    Depositor.

                  Section 8. Notices of Events of Default.

                  As promptly as practicable after, and in any event within 30
days after, the occurrence of any Event of Default actually known to the
Trustee, the Trustee shall give notice of such Event of Default to the
Depository, or, if any Certificates are not then held by DTC or any other
depository, directly to the registered holders of such Certificates. However,
except in the case of an Event of Default relating to the payment of principal
of or interest on any of the Underlying Securities, the Trustee will be
protected in withholding such notice if in good faith it determines that the
withholding of such notice is in the interest of the Certificateholders.


                                       13
<PAGE>


                  Section 9. Miscellaneous.

                  (a) The provisions of Section 4.04, Advances, of the Standard
Terms shall not apply to the AT&T Note-Backed Series 2001-33 Certificates.

                  (b) The provisions of Section 4.07, Optional Exchange, of the
Standard Terms shall not apply to the AT&T Note-Backed Series 2001-33
Certificates.

                  (c) The Trustee shall simultaneously forward reports to
Certificateholders pursuant to Section 4.03 of the Standard Terms and to the New
York Stock Exchange.

                  (d) Except as expressly provided herein, the
Certificateholders shall not be entitled to terminate the Trust or cause the
sale or other disposition of the Underlying Securities.

                  (e) The provisions of Section 3.07(d) of the Standard Terms
shall not apply to the AT&T Note-Backed Series 2001-33 Certificates.

                  (f) If the Trustee has not received payment with respect to a
Collection Period on the Underlying Securities on or prior to the related
Distribution Date, such distribution will be made promptly upon receipt of such
payment. No additional amounts shall accrue on the Certificates or be owed to
Certificateholders as a result of such delay; provided, however, that any
additional interest owed and paid by the Underlying Securities Issuer as a
result of such delay shall be paid to the Class A-1 Certificateholders pro rata
in proportion to their respective entitlements to interest.

                  (g) The outstanding principal balance of the Certificates
shall not be reduced by the amount of any Realized Losses (as defined in the
Standard Terms).

                  (h) The Trust may not engage in any business or activities
other than in connection with, or relating to, the holding, protecting and
preserving of the Trust Property and the issuance of the Certificates, and other
than those required or authorized by the Trust Agreement or incidental and
necessary to accomplish such activities. The Trust may not issue or sell any
certificates or other obligations other than the Certificates or otherwise
incur, assume or guarantee any indebtedness for money borrowed. Notwithstanding
Section 3.05 of the Standard Terms, funds on deposit in the Certificate Account
shall not be invested.

                  (i) Notwithstanding anything in the Trust Agreement to the
contrary, the Trustee may be removed upon 60 days prior written notice delivered
by the holders of Class A-1 Certificates and Class A-2 Certificates representing
the Required Percentage-Removal.

                  (j) In the event that the Internal Revenue Service challenges
the characterization of the Trust as a grantor trust, the Trustee shall then
file such forms as the Depositor may specify to establish the Trust's election
pursuant to Section 761 of the Code to exclude the Trust from the application of
Subchapter K of the Code and is hereby empowered to execute such forms on behalf
of the Certificateholders.

                  (k) Notwithstanding anything in the Standard Terms to the
contrary, the Trustee, upon written direction by the Depositor, will execute the
Certificates.


                                       14
<PAGE>


                  (l) In relation to Section 7.01(f) of the Standard Terms, any
periodic reports filed by the Trustee pursuant to the Exchange Act in accordance
with the customary practices of the Depositor, need not contain any independent
reports.

                  (m) Notwithstanding anything in the Trust Agreement to the
contrary, the Trustee will have no recourse to the Underlying Securities.

                  (n) The Trustee shall promptly notify each Rating Agency upon
its obtaining actual knowledge of the occurrence of a Defeasance (as defined in
the Indenture) with respect to the Underlying Securities Issuer.

                  (o) The Trust will not merge or consolidate with any other
entity without confirmation from each Rating Agency that such merger or
consolidation will not result in the qualification, reduction or withdrawal of
its then-current rating on the Certificates.

                  (p) All directions, demands and notices hereunder or under the
Standard Terms shall be in writing and shall be delivered as set forth below
(unless written notice is otherwise provided to the Trustee).

                  If to the Depositor, to:

                           Lehman ABS Corporation
                           3 World Financial Center
                           New York, New York  10285
                           Attention: Structured Credit Trading
                           Telephone: (212) 526-6570
                           Facsimile: (212) 526-1546

                  If to the Trustee, to:

                           U.S. Bank Trust National Association
                           100 Wall Street
                           New York, New York  10005
                           Attention: Corporate Trust
                           Telephone: (212) 361-2500
                           Facsimile: (212) 809-5459

                  If to the Rating Agencies, to:

                           Moody's Investors Service, Inc.
                           99 Church Street 21W
                           New York, New York  10007
                           Attention: CBO/CLO Monitoring Department
                           Telephone: (212) 553-1494
                           Facsimile: (212) 553-0355


                                       15
<PAGE>


         and to:

                           Standard & Poor's
                           55 Water Street
                           New York, New York  10041
                           Attention: Structured Finance Surveillance Group
                           Telephone: (212) 438-2482
                           Facsimile: (212) 438-2664

                  If to the New York Stock Exchange, to:

                           New York Stock Exchange, Inc.
                           20 Broad Street
                           New York, New York  10005
                           Attention: Vincent Patten
                           Telephone: (212) 656-5272
                           Facsimile: (212) 656-5780

                  Section 10. Governing Law. THIS SERIES SUPPLEMENT AND THE
TRANSACTIONS DESCRIBED HEREIN SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO CONTRACTS MADE AND
PERFORMED WITHIN THE STATE OF NEW YORK, WITHOUT GIVING EFFECT TO THE CHOICE OF
LAWS PROVISIONS THEREOF.

                  Section 11. Counterparts. This Series Supplement may be
executed in any number of counterparts, each of which shall be deemed to be an
original, and all such counterparts shall constitute but one and the same
instrument.

                  Section 12. Termination of the Trust. The Trust shall
terminate upon the earliest to occur of (i) the payment in full at maturity or
sale by the Trust after a payment default or an acceleration or other early
payment of the Underlying Securities and the distribution in full of all amounts
due to the Class A-1 Certificateholders and Class A-2 Certificateholders; (ii)
the exercise of all outstanding Call Warrants by the Warrant Holder; (iii) the
Final Scheduled Distribution Date and (iv) the expiration of 21 years from the
death of the last survivor of the descendants of Joseph P. Kennedy, the late
Ambassador of the United States to the Court of St. James, living on the date
hereof.

                  Section 13. Sale of Underlying Securities; Optional Exchange.
In the event of a sale of the Underlying Securities pursuant to Section 5(c)
hereof or pursuant to the instructions of the Warrant Agent under Section 1.2 of
the Warrant Agent Agreement, the Trustee shall solicit bids for the sale of the
Underlying Securities with settlement thereof on or before the third (3rd)
Business Day after such sale from three leading dealers in the relevant market.
Any of the following dealers (or their successors) shall be deemed to qualify as
leading dealers: (1) Credit Suisse First Boston Corporation, (2) Goldman, Sachs
& Co., (3) Merrill Lynch, Pierce, Fenner & Smith Incorporated, (4) UBS Warburg
LLC, (5) Salomon Smith Barney Inc., and (6) except in the case of a sale related
to the exercise of Call Warrants by the Depositor or any Affiliate thereof,
Lehman Brothers Inc. The Trustee shall not be responsible for the failure to
obtain a bid


                                       16
<PAGE>


so long as it has made reasonable efforts to obtain bids. If a bid for the sale
of the Underlying Securities has been accepted by the Trustee but the sale has
failed to settle on the proposed settlement date, the Trustee shall request new
bids from such leading dealers. In the event of an Optional Exchange, the
Trustee shall only deliver the Underlying Securities to the purchaser of such
Underlying Securities or sell the Underlying Securities pursuant to this Section
13, as the case may be, against payment in same day funds deposited into the
Certificate Account.

                  Section 14. Amendments. Notwithstanding anything in the Trust
Agreement to the contrary, in addition to the other restrictions on modification
and amendment contained therein, the Trustee shall not enter into any amendment
or modification of the Trust Agreement which would adversely affect in any
material respect the interests of the holders of any class of Certificates
without the consent of the holders of 100% of such class of Certificates;
provided, however, that no such amendment or modification will be permitted
which would alter the status of the Trust as a grantor trust for federal income
tax purposes. Further, no amendment shall be permitted which would adversely
affect in any material respect the interests of any class of Certificateholders
without confirmation by each Rating Agency that such amendment will not result
in a downgrading or withdrawal of its rating of such class of Certificates.

                  Section 15. Voting of Underlying Securities, Modification of
Indenture. The Trustee, as holder of the Underlying Securities, has the right to
vote and give consents and waivers in respect of the Underlying Securities as
permitted by the Depository and except as otherwise limited by the Trust
Agreement. In the event that the Trustee receives a request from the Depository,
the Underlying Securities Trustee or the Underlying Securities Issuer for its
consent to any amendment, modification or waiver of the Underlying Securities,
the Indenture or any other document thereunder or relating thereto, or receives
any other solicitation for any action with respect to the Underlying Securities,
the Trustee shall mail a notice of such proposed amendment, modification, waiver
or solicitation to each Certificateholder of record as of such date. The Trustee
shall request instructions from the Certificateholders as to whether or not to
consent to or vote to accept such amendment, modification, waiver or
solicitation. The Trustee shall consent or vote, or refrain from consenting or
voting, in the same proportion (based on the relative outstanding principal
balances of the Certificates) as the Certificates of the Trust were actually
voted or not voted by the Certificateholders thereof as of a date determined by
the Trustee prior to the date on which such consent or vote is required;
provided, however, that, notwithstanding anything in the Trust Agreement to the
contrary, the Trustee shall at no time vote on or consent to any matter (i)
unless such vote or consent would not (based on an opinion of counsel) alter the
status of the Trust as a grantor trust for federal income tax purposes or result
in the imposition of tax upon the Certificateholders, (ii) which would alter the
timing or amount of any payment on the Underlying Securities, including, without
limitation, any demand to accelerate the Underlying Securities, except in the
event of a default under the Underlying Securities or an event which with the
passage of time would become an event of default under the Underlying Securities
and with the unanimous consent of all outstanding Class A-1 Certificateholders
and the Class A-2 Certificateholders, or (iii) which would result in the
exchange or substitution of any of the outstanding Underlying Securities
pursuant to a plan for the refunding or refinancing of such Underlying
Securities except in the event of a default under the Indenture and only with
the consent of Certificateholders representing 100% of the Class A-1
Certificates and 100% of the Class A-2 Certificates. The Trustee shall have no
liability for any


                                       17
<PAGE>


failure to act resulting from Certificateholders' late return of, or failure to
return, directions requested by the Trustee from the Certificateholders.

                  In the event that an offer is made by the Underlying
Securities Issuer to issue new obligations in exchange and substitution for any
of the Underlying Securities, pursuant to a plan for the refunding or
refinancing of the outstanding Underlying Securities or any other offer is made
for the Underlying Securities, the Trustee shall notify the Class A-1
Certificateholders and Class A-2 Certificateholders of such offer promptly. The
Trustee must reject any such offer unless the Trustee is directed by the
affirmative vote of the holders of 100% of the Class A-1 Certificates and Class
A-2 Certificates to accept such offer and the Trustee has received the tax
opinion described above. If pursuant to the preceding sentence, the Trustee
accepts any such offer the Trustee shall promptly notify the Rating Agencies.

                  If an event of default under the Indenture occurs and is
continuing, and if directed by a majority of the outstanding Class A-1
Certificateholders and Class A-2 Certificateholders, the Trustee shall vote the
Underlying Securities in favor of directing, or take such other action as may be
appropriate to direct, the Underlying Securities Trustee to declare the unpaid
principal amount of the Underlying Securities and any accrued and unpaid
interest thereon to be due and payable.

                  Section 16. Additional Depositor Representation. It is the
express intent of the parties hereto that the conveyance of the Underlying
Securities by the Depositor to the Trustee be, and be construed as, a sale of
the Underlying Securities by the Depositor and not a pledge of any Underlying
Securities by the Depositor to secure a debt or other obligation of the
Depositor. In the event that, notwithstanding the aforementioned intent of the
parties, any Underlying Securities are held to be property of the Depositor,
then, it is the express intent of the parties that such conveyance be deemed a
pledge of such Underlying Securities by the Depositor to the Trustee to secure a
debt or other obligation of the Depositor, pursuant to Section 10.07 of the
Standard Terms. In connection with any such grant of a security interest in the
Underlying Securities, Depositor hereby represents and warrants to Trustee as
follows:

                  (i)      In the event the Underlying Securities are held to be
                           property of the Depositor, then the Trust Agreement
                           creates a valid and continuing security interest (as
                           defined in the applicable Uniform Commercial Code) in
                           the Underlying Securities in favor of the Trustee
                           which security interest is prior to all other liens,
                           and is enforceable as such as against creditors of,
                           and purchasers from, the Depositor.

                  (ii)     The Underlying Securities have been credited to a
                           trust account (the "Securities Account") of the
                           Trustee, or its authorized agent, in accordance with
                           Section 2.01 of the Standard Terms. The Trustee, as
                           securities intermediary for the Securities Account,
                           has agreed to treat the Underlying Securities as
                           "financial assets" within the meaning of the Uniform
                           Commercial Code.

                  (iii)    Immediately prior to the transfer of the Underlying
                           Securities to the Trust, Depositor owned and had good
                           and marketable title to the Underlying Securities
                           free and clear of any lien, claim or encumbrance of
                           any Person.


                                       18
<PAGE>


                  (iv)     Depositor has received all consents and approvals
                           required by the terms of the Underlying Securities to
                           the transfer to the Trustee of its interest and
                           rights in the Underlying Securities as contemplated
                           by the Trust Agreement.

                  (v)      Depositor has taken all steps necessary to cause the
                           Trustee, as securities intermediary for the
                           Securities Account, to identify on its records that
                           the Trustee, as the trustee of the Trust, is the
                           Person having a security entitlement against the
                           securities intermediary in the Securities Account.

                  (vi)     Depositor has not assigned, pledged, sold, granted a
                           security interest in or otherwise conveyed any
                           interest in the Underlying Securities (or, if any
                           such interest has been assigned, pledged or otherwise
                           encumbered, it has been released). Depositor has not
                           authorized the filing of and is not aware of any
                           financing statements against Depositor that includes
                           a description of the Underlying Securities. Depositor
                           is not aware of any judgment or tax lien filings
                           against Depositor

                  (vii)    The Securities Account is not in the name of any
                           Person other than the Trust. Depositor has not
                           consented to the compliance by the Trustee, as
                           securities intermediary, with entitlement orders of
                           any Person other than the Trustee, as trustee of the
                           Trust.


                                       19
<PAGE>


                  IN WITNESS WHEREOF, the parties hereto have caused this Series
Supplement to be duly executed by their respective authorized officers as of the
date first written above.

                              LEHMAN ABS CORPORATION,
                                  as Depositor

                              By:_________________________________________
                                 Name: Rene Canezin
                                 Title: Senior Vice President

                              U.S. BANK TRUST NATIONAL ASSOCIATION,
                                 not in its individual capacity
                                 but solely as Trustee on behalf
                                 of the Corporate Backed Trust
                                 Certificates AT&T Note-Backed Series,
                                  2001-33 Trust

                              By:_________________________________________
                                 Name: David Kolibachuk
                                 Title: Vice President and Assistant Secretary










<PAGE>


                                                                    SCHEDULE I

                         AT&T NOTE-BACKED SERIES 2001-33

                         UNDERLYING SECURITIES SCHEDULE

Underlying Securities:                   6.50% Notes due March 15, 2029.

Underlying Securities Issuer:            AT&T Corp.

CUSIP Number:                            001957AW9.

Principal Amount Deposited:              $32,885,000.

Original Issue Date:                     March 26, 1999.

Principal Amount of
Underlying Securities
Originally Issued:                       $3,000,000,000.

Maturity Date:                           March 15, 2029.

Principal Payment Date:                  March 15, 2029.

Interest Rate:                           6.50% per annum.

Interest Payment Dates:                  March 15th and September 15th.

Underlying Securities Record Dates:      The day immediately preceding each
                                         Distribution Date.



<PAGE>


                                                                     SCHEDULE II

                       CLASS A-2 CERTIFICATE CALL SCHEDULE

         Date Ending Balance                            Value
         -------------------                            -----
              9/05/2006                               $377,594
              9/15/2006                               $378,619
              3/15/2007                               $397,550
              9/15/2007                               $417,428
              3/15/2008                               $438,299
              9/15/2008                               $460,214
              3/15/2009                               $483,225
              9/15/2009                               $507,386
              3/15/2010                               $532,755
              9/15/2010                               $559,393
              3/15/2011                               $587,363
              9/15/2011                               $616,731
              3/15/2012                               $647,567
              9/15/2012                               $679,946
              3/15/2013                               $713,943
              9/15/2013                               $749,640
              3/15/2014                               $787,122
              9/15/2014                               $826,478
              3/15/2015                               $867,802
              9/15/2015                               $911,192
              3/15/2016                               $956,752
              9/15/2016                             $1,004,589
              3/15/2017                             $1,054,819
              9/15/2017                             $1,107,560
              3/15/2018                             $1,162,938
              9/15/2018                             $1,221,085
              3/15/2019                             $1,282,139
              9/15/2019                             $1,346,246
              3/15/2020                             $1,413,558
              9/15/2020                             $1,484,236
              3/15/2021                             $1,558,448
              9/15/2021                             $1,636,370
              3/15/2022                             $1,718,189
              9/15/2022                             $1,804,098
              3/15/2023                             $1,894,303
              9/15/2023                             $1,989,018
              3/15/2024                             $2,088,469
              9/15/2024                             $2,192,893
              3/15/2025                             $2,302,537
              9/15/2025                             $2,417,664
              3/15/2026                             $2,538,547
              9/15/2026                             $2,665,475
              3/15/2027                             $2,798,748
              9/15/2027                             $2,938,686

<PAGE>

         Date Ending Balance                            Value
         -------------------                            -----
              3/15/2028                             $3,085,620
              9/15/2028                             $3,239,901
              3/15/2029                             $3,401,900

<PAGE>


                                                                     EXHIBIT A-1


                       FORM OF TRUST CERTIFICATE CLASS A-1


<PAGE>



                              CLASS A-1 CERTIFICATE

NUMBER 1                                          1,179,324 $25 PAR CERTIFICATES
                                                           CUSIP NO. 21988G 58 5

                       SEE REVERSE FOR CERTAIN DEFINITIONS

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE ISSUER OR ITS
AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     THIS CERTIFICATE REPRESENTS A PROPORTIONATE UNDIVIDED BENEFICIAL OWNERSHIP
INTEREST IN THE TRUST AND DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN,
AND IS NOT GUARANTEED BY THE DEPOSITOR OR THE TRUSTEE OR ANY OF THEIR RESPECTIVE
AFFILIATES. NEITHER THIS CERTIFICATE OR THE TRUST ASSETS ARE INSURED OR
GUARANTEED BY ANY GOVERNMENTAL AGENCY OR ANY OTHER PERSON.

                             LEHMAN ABS CORPORATION

                                1,179,324 $25 PAR

                      CORPORATE BACKED TRUST CERTIFICATES,

                         AT&T NOTE-BACKED SERIES 2001-33

7.25% INTEREST RATE

evidencing a proportionate undivided beneficial ownership interest in the Trust,
as defined below, the property of which consists principally of $32,885,000
aggregate principal amount of 6.50% Notes due March 15, 2029, issued by AT&T
Corp. (the "Underlying Securities Issuer") and all payments received thereon
(the "Trust Property"), deposited in trust by Lehman ABS Corporation (the
"Depositor").

     THIS CERTIFIES THAT CEDE & CO. is the registered owner of $32,885,000
DOLLARS nonassessable, fully-paid, proportionate undivided beneficial ownership
interest in the Corporate Backed Trust Certificates, AT&T Note-Backed Series
2001-33 Trust, formed by the Depositor.


<PAGE>


     The Trust was created pursuant to a Standard Terms for Trust Agreements,
dated as of January 16, 2001 (the "Standard Terms"), between the Depositor and
U.S. Bank Trust National Association, a national banking association, not in its
individual capacity but solely as Trustee (the "Trustee"), as supplemented by
the Series Supplement, AT&T Note-Backed Series 2001-33, dated as of September 5,
2001 (the "Series Supplement" and, together with the Standard Terms, the "Trust
Agreement"), between the Depositor and the Trustee. This Certificate does not
purport to summarize the Trust Agreement and reference is hereby made to the
Trust Agreement for information with respect to the interests, rights, benefits,
obligations, proceeds and duties evidenced hereby and the rights, duties and
obligations of the Trustee with respect hereto. A copy of the Trust Agreement
may be obtained from the Trustee by written request sent to the Corporate Trust
Office. Capitalized terms used but not defined herein have the meanings assigned
to them in the Trust Agreement.

     This Certificate is one of the duly authorized Certificates designated as
the "Corporate Backed Trust Certificates, AT&T Note-Backed Series 2001-33, Class
A-1" (herein called the "Certificates"). This Certificate is issued under and is
subject to the terms, provisions and conditions of the Trust Agreement, to which
Trust Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound. The Trust Property consists
of: (i) Underlying Securities described in the Trust Agreement; (ii) all
payments on or collections in respect of the Underlying Securities accrued on or
after September 5, 2001 together with any proceeds thereof; and (iii) all funds
from time to time deposited with the Trustee relating to the Certificates,
together with any and all income, proceeds and payments with respect thereto;
provided, however, that any income from the investment of Trust funds in certain
permitted investments ("Eligible Investments") does not constitute Trust
Property.

     Subject to the terms and conditions of the Trust Agreement (including the
availability of funds for distributions) and until the obligation created by the
Trust Agreement shall have terminated in accordance therewith, distributions
will be made on each Distribution Date, to the Person in whose name this
Certificate is registered on the applicable Record Date, in an amount equal to
such Certificateholder's proportionate undivided beneficial ownership interest
in the amount required to be distributed to the Holders of the Certificates on
such Distribution Date. The Record Date applicable to any Distribution Date is
the close of business on the day immediately preceding such Distribution Date
(whether or not a Business Day). If a payment with respect to the Underlying
Securities is made to the Trustee after the date on which such payment was due,
then the Trustee will distribute any such amounts received on the next occurring
Business Day (a "Special Distribution Date").

     Each Certificateholder, by its acceptance of a Certificate, covenants and
agrees that such Certificateholder will not at any time institute against the
Trust, or join in any institution against the Trust of, any bankruptcy
proceedings under any United States Federal or state bankruptcy or similar law
in connection with any obligations relating to the Certificates or the Trust
Agreement.

     Distributions made on this Certificate will be made as provided in the
Trust Agreement by the Trustee by wire transfer in immediately available funds,
or check mailed to the Certificateholder of record in the Certificate Register
without the presentation or surrender of this Certificate or the making of any
notation hereon, except that with respect to Certificates


<PAGE>


registered on the Record Date in the name of the nominee of the Clearing Agency
(initially, such nominee shall be Cede & Co.), payments will be made by wire
transfer in immediately available funds to the account designated by such
nominee. Except as otherwise provided in the Trust Agreement and notwithstanding
the above, the final distribution on this Certificate will be made after due
notice by the Trustee of the pendency of such distribution and only upon
presentation and surrender of this Certificate at the Corporate Trust Office or
such other location as may be specified in such notice.

     Reference is hereby made to the further provisions of this Certificate set
forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

     Unless the certificate of authentication hereon has been executed by or on
behalf of the Trustee, by manual signature, this Certificate shall not entitle
the Holder hereof to any benefit under the Trust Agreement or be valid for any
purpose.

     THIS CERTIFICATE SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE
STATE OF NEW YORK, WITHOUT REFERENCE TO ITS CONFLICT OF LAW PROVISIONS, AND THE
OBLIGATIONS, RIGHTS AND REMEDIES OF THE HOLDER HEREOF SHALL BE DETERMINED IN
ACCORDANCE WITH SUCH LAWS.


<PAGE>



     IN WITNESS WHEREOF, the Trustee has caused this Certificate to be duly
executed as of the date set forth below.

                                   CORPORATE BACKED TRUST
                                   CERTIFICATES, AT&T NOTE-BACKED
                                   SERIES 2001-33 TRUST

                                   By: U.S. BANK TRUST NATIONAL ASSOCIATION
                                   not in its individual capacity but solely as
                                   Trustee,


                                   By:
                                      -----------------------------------------
                                      Authorized Signatory

Dated: September 5, 2001


                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

     This is on one of the Corporate Backed Trust Certificates, AT&T Note-Backed
Series 2001-33, described in the Trust Agreement referred to herein.

U.S. BANK TRUST NATIONAL ASSOCIATION
not in its individual capacity but solely as
Trustee,


By:
   ---------------------------------
     Authorized Signatory

<PAGE>


                            (REVERSE OF CERTIFICATE)

     The Certificates are limited in right of distribution to certain payments
and collections respecting the Underlying Securities, all as more specifically
set forth herein and in the Trust Agreement. The registered Holder hereof, by
its acceptance hereof, agrees that it will look solely to the Trust Property (to
the extent of its rights therein) for distributions hereunder.

     The Trust Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Depositor and the Trustee and the rights of the Certificateholders under the
Trust Agreement at any time by the Depositor and the Trustee with the consent of
the Holders of Class A-1 Certificates in the manner set forth in the Series
Supplement and the Standard Terms. Any such consent by the Holder of this
Certificate (or any predecessor Certificate) shall be conclusive and binding on
such Holder and upon all future Holders of this Certificate and of any
Certificate issued upon the transfer hereof or in exchange hereof or in lieu
hereof whether or not notation of such consent in made upon this Certificate.
The Trust Agreement also permits the amendment thereof, in certain limited
circumstances, without the consent of the Holders of any of the Certificates.

     The Certificates are issuable in fully registered form only in
denominations of $25.

     As provided in the Trust Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registerable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the offices or agencies of the Certificate Registrar maintained by
the Trustee in the Borough of Manhattan, the City of New York, duly endorsed by
or accompanied by an assignment in the form below and by such other documents as
required by the Trust Agreement, and thereupon one or more new Certificates of
the same class in authorized denominations evidencing the same principal amount
will be issued to the designated transferee or transferees. The initial
Certificate Registrar appointed under the Trust Agreement is U.S. Bank Trust
National Association.

     No service charge will be made for any registration of transfer or
exchange, but the Trustee may require exchange of a sum sufficient to cover any
tax or other governmental charge that may be imposed in connection with any
transfer or exchange of Certificates.

     The Depositor and the Trustee and any agent of the Depositor or the Trustee
may treat the Person in whose name this Certificate is registered as the owner
hereof for all purposes, and neither the Depositor, the Trustee, nor any such
agent shall be affected by any notice to the contrary.

     It is the intention of the parties to the Trust Agreement that the Trust
created thereunder shall constitute a fixed investment trust for federal income
tax purposes under Treasury Regulation Section 301.7701-4, and the
Certificateholder agrees to treat the Trust, any distributions therefrom and its
beneficial interest in the Certificates consistently with such characterization.

     The Trust and the obligations of the Depositor and the Trustee created by
the Trust Agreement with respect to the Certificates shall terminate upon the
earliest to occur of (i) the payment in full at maturity or sale by the Trust
after a payment default or an acceleration or other

<PAGE>


early payment of the Underlying Securities and the distribution in full of all
amounts due to the Class A-1 Certificateholders and Class A-2
Certificateholders; (ii) the exercise of all outstanding Call Warrants by the
Warrant Holder; (iii) the Final Scheduled Distribution Date and (iv) the
expiration of 21 years from the death of the last survivor of the descendants of
Joseph P. Kennedy, the late Ambassador of the United States to the Court of St.
James, living on the date hereof.

     An employee benefit plan subject to the Employee Retirement Income Security
Act of 1974, as amended ("ERISA"), a plan described in Section 4975(e) of the
Code, an entity whose underlying assets include plan assets by reason of any
such plan's investment in the entity, including an individual retirement account
or Keogh plan (any such, a "Plan") may purchase and hold Certificates if the
Plan can represent and warrant that its purchase and holding of the Certificates
would not be prohibited under ERISA or the Code.


<PAGE>


                                   ASSIGNMENT

     FOR VALUE RECEIVED the undersigned hereby sells, assigns and transfers unto

PLEASE INSERT SOCIAL SECURITY
OR OTHER IDENTIFYING NUMBER
OF ASSIGNEE

(Please print or type name and address, including postal zip code, of assignee)
the within Certificate, and all rights thereunder, hereby irrevocably
constituting and appointing ______________________ Attorney to transfer said
Certificate on the books of the Certificate Register, with full power of
substitution in the premises.

Dated:


                                                              *

                                                 Signature Guaranteed:

                                                              *


*NOTICE: The signature to this assignment must correspond with the name as it
appears upon the face of the within Certificate in every particular, without
alteration, enlargement or any change whatever. Signatures must be guaranteed by
an "eligible guarantor institution" meeting the requirements of the Certificate
Registrar, which requirements include membership or participation in the
Security Transfer Agent Medallion Program ("STAMP") or such other "signature
guarantee program" as may be determined by the Certificate Registrar in addition
to, or in substitution for, STAMP, all in accordance with the Securities
Exchange Act of 1934, as amended.


<PAGE>



                                                                     EXHIBIT A-2


                       FORM OF TRUST CERTIFICATE CLASS A-2


<PAGE>



                              CLASS A-2 CERTIFICATE

NUMBER 1                                                              $3,401,900
                                                           CUSIP NO. 21988G BF 2

                       SEE REVERSE FOR CERTAIN DEFINITIONS

     THIS CLASS A-2 CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED, AND MAY NOT BE TRANSFERRED, SOLD OR OTHERWISE DISPOSED OF
EXCEPT WHILE A REGISTRATION UNDER SUCH ACT IS IN EFFECT OR PURSUANT TO AN
EXEMPTION THEREFROM UNDER SUCH ACT. THE CLASS A-2 CERTIFICATE REPRESENTED HEREBY
MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF THE SERIES SUPPLEMENT.

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE ISSUER OR ITS
AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE
ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     THIS CERTIFICATE REPRESENTS A PROPORTIONATE UNDIVIDED BENEFICIAL OWNERSHIP
INTEREST IN THE TRUST AND DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST IN,
AND IS NOT GUARANTEED BY THE DEPOSITOR OR THE TRUSTEE OR ANY OF THEIR RESPECTIVE
AFFILIATES. NEITHER THIS CERTIFICATE OR THE TRUST ASSETS ARE INSURED OR
GUARANTEED BY ANY GOVERNMENTAL AGENCY OR ANY OTHER PERSON.


<PAGE>


                             LEHMAN ABS CORPORATION

                      CORPORATE BACKED TRUST CERTIFICATES,

                         AT&T NOTE-BACKED SERIES 2001-33

                           $3,401,900 PRINCIPAL AMOUNT

evidencing a proportionate undivided beneficial ownership interest in the Trust,
as defined below, the property of which consists principally of $32,885,000
aggregate principal amount of 6.50% Notes due March 15, 2029 of AT&T Corp. (the
"Underlying Securities Issuer") and all payments received thereon (the "Trust
Property"), deposited in trust by Lehman ABS Corporation (the "Depositor").

     THIS CERTIFIES THAT CEDE & CO. is the registered owner of $3,401,900
DOLLARS nonassessable, fully-paid, proportionate undivided beneficial ownership
interest in the Corporate Backed Trust Certificates, AT&T Note-Backed Series
2001-33 Trust, formed by the Depositor.


<PAGE>


     The Trust was created pursuant to a Standard Terms for Trust Agreements,
dated as of January 16, 2001 (the "Standard Terms"), between the Depositor and
U.S. Bank Trust National Association, a national banking association, not in its
individual capacity but solely as Trustee (the "Trustee"), as supplemented by
the Series Supplement, AT&T Note-Backed Series 2001-33, dated as of September 5,
2001 (the "Series Supplement" and, together with the Standard Terms, the "Trust
Agreement"), between the Depositor and the Trustee. This Certificate does not
purport to summarize the Trust Agreement and reference is hereby made to the
Trust Agreement for information with respect to the interests, rights, benefits,
obligations, proceeds and duties evidenced hereby and the rights, duties and
obligations of the Trustee with respect hereto. A copy of the Trust Agreement
may be obtained from the Trustee by written request sent to the Corporate Trust
Office. Capitalized terms used but not defined herein have the meanings assigned
to them in the Trust Agreement.

     This Certificate is one of the duly authorized Certificates designated as
the "Corporate Backed Trust Certificates, AT&T Note-Backed Series 2001-33, Class
A-2" (herein called the "Certificates"). This Certificate is issued under and is
subject to the terms, provisions and conditions of the Trust Agreement, to which
Trust Agreement the Holder of this Certificate by virtue of the acceptance
hereof assents and by which such Holder is bound. The Trust Property consists
of: (i) Underlying Securities described in the Trust Agreement; (ii) all
payments on or collections in respect of the Underlying Securities accrued on or
after September 5, 2001 together with any proceeds thereof; and (iii) all funds
from time to time deposited with the Trustee relating to the Certificates,
together with any and all income, proceeds and payments with respect thereto;
provided, however, that any income from the investment of Trust funds in certain
permitted investments ("Eligible Investments") does not constitute Trust
Property.

     Subject to the terms and conditions of the Trust Agreement (including the
availability of funds for distributions) and until the obligation created by the
Trust Agreement shall have terminated in accordance therewith, no distributions
of interest will be made on this Certificate on any Distribution Date.

     Subject to the terms and conditions of the Trust Agreement (including the
availability of funds for distributions) and until the obligation created by the
Trust Agreement shall have terminated in accordance therewith, the Trust will
distribute on the Final Scheduled Distribution Date, to the Person in whose name
this Certificate is registered on the applicable Record Date, an amount equal to
such Certificateholder's proportionate undivided beneficial ownership interest
in the amount required to be distributed to the Holders of the Certificates on
such Final Scheduled Distribution Date.

     The Record Date applicable to the Final Scheduled Distribution Date is the
close of business on the day immediately preceding such Final Scheduled
Distribution Date (whether or not a Business Day). If a payment with respect to
the Underlying Securities is made to the Trustee after the date on which such
payment was due, then the Trustee will distribute any such amounts received on
the next occurring Business Day (a "Special Distribution Date").

     Each Certificateholder, by its acceptance of a Certificate, covenants and
agrees that such Certificateholder will not at any time institute against the
Trust, or join in any institution against the Trust of, any bankruptcy
proceedings under any United States Federal or state bankruptcy or

<PAGE>


similar law in connection with any obligations relating to the Certificates or
the Trust Agreement.

     Distributions made on this Certificate will be made as provided in the
Trust Agreement by the Trustee by wire transfer in immediately available funds,
or check mailed to the Certificateholder of record in the Certificate Register
without the presentation or surrender of this Certificate or the making of any
notation hereon, except that with respect to Certificates registered on the
Record Date in the name of the nominee of the Clearing Agency (initially, such
nominee shall be Cede & Co.), payments will be made by wire transfer in
immediately available funds to the account designated by such nominee. Except as
otherwise provided in the Trust Agreement and notwithstanding the above, the
final distribution on this Certificate will be made after due notice by the
Trustee of the pendency of such distribution and only upon presentation and
surrender of this Certificate at the Corporate Trust Office or such other
location as may be specified in such notice.

     Reference is hereby made to the further provisions of this Certificate set
forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

     Unless the certificate of authentication hereon has been executed by or on
behalf of the Trustee, by manual signature, this Certificate shall not entitle
the Holder hereof to any benefit under the Trust Agreement or be valid for any
purpose.

     THIS CERTIFICATE SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE
STATE OF NEW YORK, WITHOUT REFERENCE TO ITS CONFLICT OF LAW PROVISIONS, AND THE
OBLIGATIONS, RIGHTS AND REMEDIES OF THE HOLDER HEREOF SHALL BE DETERMINED IN
ACCORDANCE WITH SUCH LAWS.


<PAGE>



     IN WITNESS WHEREOF, the Trustee has caused this Certificate to be duly
executed as of the date set forth below.

                                   CORPORATE BACKED TRUST
                                   CERTIFICATES, AT&T NOTE-BACKED
                                   SERIES 2001-33 TRUST


                                   By: U.S. BANK TRUST NATIONAL ASSOCIATION
                                   not in its individual capacity but solely as
                                   Trustee,


                                   By:
                                      -----------------------------------------
                                      Authorized Signatory

Dated: September 5, 2001


                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

     This is on one of the Corporate Backed Trust Certificates, AT&T Note-Backed
Series 2001-33, described in the Trust Agreement referred to herein.

U.S. BANK TRUST NATIONAL ASSOCIATION
not in its individual capacity but solely as
Trustee,


By:
   ---------------------------------
     Authorized Signatory



<PAGE>


                            (REVERSE OF CERTIFICATE)

     The Certificates are limited in right of distribution to certain payments
and collections respecting the Underlying Securities, all as more specifically
set forth herein and in the Trust Agreement. The registered Holder hereof, by
its acceptance hereof, agrees that it will look solely to the Trust Property (to
the extent of its rights therein) for distributions hereunder.

     The Trust Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Depositor and the Trustee and the rights of the Certificateholders under the
Trust Agreement at any time by the Depositor and the Trustee with the consent of
the holders of Class A-2 Certificates in the manner set forth in the Series
Supplement and the Standard Terms. Any such consent by the Holder of this
Certificate (or any predecessor Certificate) shall be conclusive and binding on
such Holder and upon all future Holders of this Certificate and of any
Certificate issued upon the transfer hereof or in exchange hereof or in lieu
hereof whether or not notation of such consent in made upon this Certificate.
The Trust Agreement also permits the amendment thereof, in certain limited
circumstances, without the consent of the holders of any of the Certificates.

     The Certificates are issuable in fully registered form only in minimum
principal amounts of $500,000 and integral multiples of $1,000 in excess
thereof.

     As provided in the Trust Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registerable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the offices or agencies of the Certificate Registrar maintained by
the Trustee in the Borough of Manhattan, the City of New York, duly endorsed by
or accompanied by an assignment in the form below and by such other documents as
required by the Trust Agreement, and thereupon one or more new Certificates of
the same class in authorized denominations evidencing the same principal amount
will be issued to the designated transferee or transferees. The initial
Certificate Registrar appointed under the Trust Agreement is U.S. Bank Trust
National Association.

     No service charge will be made for any registration of transfer or
exchange, but the Trustee may require exchange of a sum sufficient to cover any
tax or other governmental charge that may be imposed in connection with any
transfer or exchange of Certificates.

     The Depositor and the Trustee and any agent of the Depositor or the Trustee
may treat the Person in whose name this Certificate is registered as the owner
hereof for all purposes, and neither the Depositor, the Trustee, nor any such
agent shall be affected by any notice to the contrary.

     It is the intention of the parties to the Trust Agreement that the Trust
created thereunder shall constitute a fixed investment trust for federal income
tax purposes under Treasury Regulation Section 301.7701-4, and the
Certificateholder agrees to treat the Trust, any distributions therefrom and its
beneficial interest in the Certificates consistently with such characterization.

     The Trust and the obligations of the Depositor and the Trustee created by
the Trust Agreement with respect to the Certificates shall terminate upon the
earliest to occur of (i) the


<PAGE>


payment in full at maturity or sale by the Trust after a payment default or an
acceleration or other early payment of the Underlying Securities and the
distribution in full of all amounts due to the Class A-1 Certificateholders and
Class A-2 Certificateholders; (ii) the exercise of all outstanding Call Warrants
by the Warrant Holder; (iii) the Final Scheduled Distribution Date and (iv) the
expiration of 21 years from the death of the last survivor of the descendants of
Joseph P. Kennedy, the late Ambassador of the United States to the Court of St.
James, living on the date hereof.

     An employee benefit plan subject to the Employee Retirement Income Security
Act of 1974, as amended ("ERISA"), a plan described in Section 4975(e) of the
Code, an entity whose underlying assets include plan assets by reason of any
such plan's investment in the entity, including an individual retirement account
or Keogh plan (any such, a "Plan") may purchase and hold Certificates if the
Plan can represent and warrant that its purchase and holding of the Certificates
would not be prohibited under ERISA or the Code.


<PAGE>


                                   ASSIGNMENT

     FOR VALUE RECEIVED the undersigned hereby sells, assigns and transfers unto

PLEASE INSERT SOCIAL SECURITY
OR OTHER IDENTIFYING NUMBER
OF ASSIGNEE

(Please print or type name and address, including postal zip code, of assignee)
the within Certificate, and all rights thereunder, hereby irrevocably
constituting and appointing ____________________ Attorney to transfer said
Certificate on the books of the Certificate Register, with full power of
substitution in the premises.

Dated:


                                                               *

                                                  Signature Guaranteed:

                                                               *


*NOTICE: The signature to this assignment must correspond with the name as it
appears upon the face of the within Certificate in every particular, without
alteration, enlargement or any change whatever. Signatures must be guaranteed by
an "eligible guarantor institution" meeting the requirements of the Certificate
Registrar, which requirements include membership or participation in the
Security Transfer Agent Medallion Program ("STAMP") or such other "signature
guarantee program" as may be determined by the Certificate Registrar in addition
to, or in substitution for, STAMP, all in accordance with the Securities
Exchange Act of 1934, as amended.


<PAGE>
                                    EXHIBIT B

                         FORM OF WARRANT AGENT AGREEMENT

                       CORPORATE BACKED TRUST CERTIFICATES

                      AT&T NOTE-BACKED SERIES 2001-33 TRUST

     WARRANT AGENT AGREEMENT, dated as of September 5, 2001 (the "Warrant Agent
Agreement"), by and between LEHMAN ABS CORPORATION, as Depositor (the
"Depositor"), and U.S. BANK TRUST NATIONAL ASSOCIATION, as Warrant Agent (the
"Warrant Agent").

                              W I T N E S S E T H:

     WHEREAS, the Depositor created Corporate Backed Trust Certificates, AT&T
Note-Backed Series 2001-33 Trust (the "Trust"), a trust created under the laws
of the State of New York pursuant to a Standard Terms for Trust Agreements,
dated as of January 16, 2001 (the "Agreement"), between the Depositor and U.S.
Bank Trust National Association, a national banking association, not in its
individual capacity but solely as Trustee (the "Trustee"), as supplemented by
the Series Supplement 2001-33, dated as of September 5, 2001 (the "Series
Supplement" and, together with the Agreement, the "Trust Agreement"), between
the Depositor and the Trustee; and

     WHEREAS, in connection with the creation of the Trust and the deposit
therein of the Underlying Securities, it is desired to provide for the issuance
of trust certificates (the "Certificates") evidencing undivided interests in the
Trust and call warrants with respect to the Certificates ("Call Warrants").

     NOW, THEREFORE, in consideration of the foregoing premises and the mutual
covenants expressed herein, it is hereby agreed by and between the Depositor and
the Trustee as follows:

     Section 1. DEFINITIONS. Except as otherwise specified herein or as the
context may otherwise require, capitalized terms used herein but not defined
herein shall have the respective meanings set forth below for all purposes under
the Series Supplement.

                                   ARTICLE I

                            Exercise of Call Warrants

     Section 1.1   MANNER OF EXERCISE. (a) Call Warrants may be exercised by any
holder thereof (each, a "Warrant Holder") in whole or in part on any Call Date.
The following conditions shall apply to any exercise of Call Warrants:

          (i) A notice (each, a "Call Notice") specifying the number of Call
     Warrants being exercised and the Call Date shall be delivered to the
     Warrant Agent and the Trustee at least 5 Business Days before such Call
     Date.

<PAGE>


          (ii) The Warrant Holder shall surrender the Call Warrants to the
     Warrant Agent at its office specified in Section 6.3 hereof no later than
     10:00 a.m. (New York City time) on such Call Date.

          (iii) The Warrant Holder shall have made payment to the Warrant Agent,
     by wire transfer or other immediately available funds acceptable to the
     Warrant Agent, in the amount of the Call Price, no later than 10:00 a.m.
     (New York City time) on the Call Date.

          (iv) The Warrant Holder shall exercise Call Warrants relating to Class
     A-1 Certificates and Call Warrants relating to Class A-2 Certificates which
     represent a like percentage of all Class A-1 Certificates and Class A-2
     Certificates.

          (v) The Warrant Holder may not exercise the Call Warrants at any time
     when such Warrant Holder is insolvent, and such Warrant Holder shall be
     required to certify that it is solvent at the time of exercise, by
     completing the Form of Subscription attached to the Call Warrants and
     delivering such completed Form of Subscription to the Trustee on or prior
     to the Call Date and by delivering to the Trustee a form reasonably
     satisfactory to the Trustee of the opinion and the solvency certificate
     required pursuant to Section 7(b)(ii) of the Series Supplement.

          (vi) The Warrant Holder shall have satisfied any other conditions to
     the exercise of Call Warrants set forth in Section 7(b) of the Series
     Supplement.

          (b) Upon exercise of Call Warrants, any Warrant Holder other than the
Depositor or any Affiliate of the Depositor shall be entitled to delivery of the
Called Certificates. The "Called Certificates" shall be, in the case of the
Class A-1 Certificates, Class A-1 Certificates having a Certificate Principal
Amount equal to $25 per Call Warrant and, in the case of the Class A-2
Certificates, Class A-2 Certificates having a Certificate Principal Amount equal
to $1,000 per Call Warrant. Unless otherwise specified therein, such Call Notice
shall be deemed to be notice of an Optional Exchange pursuant to Section 7(a) of
the Series Supplement. Any Warrant Holder which is the Depositor or any
Affiliate of the Depositor shall receive the proceeds of the sale of the Called
Underlying Securities and shall not be entitled to receive the related Called
Certificates. "Called Underlying Securities" are Underlying Securities which
represent the same percentage of the Underlying Securities as the Called
Certificates represent of the Class A-1 Certificates and Class A-2 Certificates.

          (b) The Warrant Agent shall notify the Trustee immediately upon its
receipt of a Call Notice and upon receipt of payment of the Call Price. The
Warrant Agent shall transfer the amount any paid Call Price to the Trustee in
immediately available funds, for application pursuant to the Trust Agreement on
the applicable Call Date (and, pending such transfer, shall hold such amount for
the benefit of the Warrant Holder in a segregated trust account).

          (c) Delivery of a Call Notice does not give rise to an obligation on
part of the Warrant Holder to pay the Call Price. If, by 10:00 a.m. (New York
City time) on the Call Date, the Warrant Holder has not paid the Call Price,
then the Call Notice shall automatically expire and none of the Warrant Holder,
the Warrant Agent or the Trustee shall have any obligation with


<PAGE>



respect to the Call Notice. The expiration of a Call Notice shall in no way
affect the Warrant Holder's right to deliver a Call Notice at a later date.

     Section 1.2 TRANSFER OF CERTIFICATES. As soon as practicable after each
surrender of Call Warrants in whole or in part on the Call Date and upon
satisfaction of all other requirements described in the Call Warrants and in
Section 1.1 hereof, the Warrant Agent shall instruct the Trustee as follows:

          (a) if Call Warrants are being exercised by any Warrant Holder other
than the Depositor or any Affiliate of the Depositor, to cause the Called
Certificates to reflect the holder's beneficial ownership of such Certificates,
or

          (b) if the Call Warrants are being exercised by the Depositor or any
Affiliate of the Depositor, to cause the Called Underlying Securities to be sold
pursuant to Section 13 of the Series Supplement and to distribute the proceeds
of such sale to the Warrant Holder.

     If such exercise is in part only, the Warrant Agent shall instruct the
Trustee to authenticate new Call Warrants of like tenor, representing the
outstanding Call Warrants of the Warrant Holder and the Warrant Agent shall
deliver such Call Warrants to the Warrant Holder.

     Section 1.3 CANCELLATION AND DESTRUCTION OF CALL WARRANTS. All Call
Warrants surrendered to the Warrant Agent for the purpose of exercise (in whole
or in part) pursuant to Section 1.1 and actually exercised, or for the purpose
of transfer or exchange pursuant to Article III, shall be cancelled by the
Warrant Agent, and no Call Warrant shall be issued in lieu thereof. The Warrant
Agent shall destroy all cancelled Call Warrants.

     Section 1.4 NO RIGHTS AS HOLDER OF CERTIFICATES CONFERRED BY CALL WARRANTS.
Prior to the exercise thereof, Call Warrants shall not entitle the Warrant
Holder to any of the rights of a holder of the Certificates, including, without
limitation, the right to receive the payment of any amount on or in respect of
the Certificates or to enforce any of the covenants of the Trust Agreement.

                                   ARTICLE II

                            Restrictions on Transfer

     Section 2.1 RESTRICTIVE LEGENDS. Except as otherwise permitted by this
Article II, each Call Warrant (including each Call Warrant issued upon the
transfer of any Call Warrant) shall be issued with a legend in substantially the
following form:

          "This Call Warrant has not been registered under the Securities Act of
1933, as amended, and may not be transferred, sold or otherwise disposed of
except while a registration under such Act is in effect or pursuant to an
exemption therefrom under such Act. The Call Warrant represented hereby may be
transferred only in compliance with the conditions specified in the Call
Warrants."

     Section 2.2 NOTICE OF PROPOSED TRANSFER; OPINIONS OF COUNSEL. Prior to any
transfer of any Call Warrant or portion thereof, the Warrant Holder will give 5
Business Days (or such


<PAGE>



lesser period acceptable to the Warrant Agent) prior written notice to the
Warrant Agent of such Warrant Holder's intention to effect such transfer.

                                  ARTICLE III

                Registration and Transfer of Call Warrants, etc.

     Section 3.1 WARRANT REGISTER; OWNERSHIP OF CALL WARRANTS. The Warrant Agent
will keep a register in which the Warrant Agent will provide for the
registration of Call Warrants and the registration of transfers of Call Warrants
representing whole numbers of Call Warrants. The Trustee and the Warrant Agent
may treat the Person in whose name any Call Warrant is registered on such
register as the owner thereof for all purposes, and the Trustee and the Warrant
Agent shall not be affected by any notice to the contrary.

     Section 3.2 TRANSFER AND EXCHANGE OF CALL WARRANTS. Upon surrender of any
Call Warrant for registration of transfer or for exchange to the Warrant Agent,
the Warrant Agent shall (subject to compliance with Article II) execute and
deliver, and cause the Trustee, on behalf of the Trust, to execute and deliver,
in exchange therefor, a new Call Warrant of like tenor and evidencing a like
whole number of Call Warrants, in the name of such Warrant Holder or as such
Warrant Holder (upon payment by such Warrant Holder of any applicable transfer
taxes or government charges) may direct; provided that as a condition precedent
for transferring the Call Warrants, the prospective transferee shall be required
to deliver to the Trustee and the Depositor an executed copy of the Investment
Letter (set forth as Exhibit C to the Series Supplement).

     Section 3.3 REPLACEMENT OF CALL WARRANTS. Upon receipt of evidence
reasonably satisfactory to the Warrant Agent of the loss, theft, destruction or
mutilation of any Call Warrant and, in the case of any such loss, theft or
destruction of any Call Warrant, upon delivery of an indemnity bond in such
reasonable amount as the Warrant Agent may determine, or, in the case of any
such mutilation, upon the surrender of such Call Warrant for cancellation to the
Warrant Agent, the Warrant Agent shall execute and deliver, and cause the
Trustee, on behalf of the Trust, to execute and deliver, in lieu thereof, a new
Call Warrant of like tenor bearing a number not contemporaneously outstanding.

     Section 3.4 EXECUTION AND DELIVERY OF CALL WARRANTS BY TRUSTEE. The
Trustee, on behalf of the Trust, hereby agrees (subject to compliance with
Article II) to execute and deliver such new Call Warrants issued in accordance
with Section 1.2 or this Article III as the Warrant Agent shall request in
accordance herewith.

                                   ARTICLE IV

                                   Definitions

          As used herein, unless the context otherwise requires, the following
terms have the following respective meanings:

          "Accreted Principal Amount": For each six month period from and
including each date specified in Schedule II to the Series Supplement to but
excluding the next such date, the amount specified in that Schedule II as the
"Ending Balance" for such beginning date.


<PAGE>



          "Business Day": As defined in the Trust Agreement.

          "Call Date": Any Business Day on or after September 5, 2006 or after
the announcement of any redemption or other unscheduled payment or sale of the
Underlying Securities on which the Call Warrants are exercised and the proceeds
of an Optional Call (as defined in the Series Supplement) are distributed to the
holders of the Certificates pursuant to Section 7 of the Series Supplement.

          "Call Notice": As defined in Section 1.1 hereof.

          "Call Price": For each related Call Date, (i) in the case of the Class
A-1 Certificates, the par value of the Class A-1 Certificates being purchased
pursuant to the exercise of the Call Warrants, plus any accrued and unpaid
interest on such amount to but excluding the Call Date and (ii) in the case of
the Class A-2 Certificates being purchased pursuant to the exercise of the Call
Warrants, the Accreted Principal Amount of the Class A-2 Certificates.

          "Call Warrant": As defined in the recitals.

          "Closing Date": September 5, 2001.

          "Depositor": As defined in the recitals.

          "Depositor Order": As defined in the Trust Agreement.

          "Person": Any individual, corporation, partnership, joint venture,
association, joint stock company, trust (including any beneficiary thereof),
unincorporated organization or government or any agency or political subdivision
thereof.

          "Rating Agencies": Standard & Poor's Ratings Services and Moody's
Investors Service, Inc. and any successor thereto.

          "Responsible Officer": As defined in the Trust Agreement.

          "Securities Act": The Securities Act of 1933, or any similar federal
statute, and the rules and regulations of the Commission thereunder, all as the
same shall be in effect at the time.

          "Trust": As defined in the recitals.

          "Trust Agreement": As defined in the recitals.

          "Trustee": As defined in the introduction to this Warrant, or any
successor thereto under the Trust Agreement.

          "Warrant Agent": U.S. Bank Trust National Association, a national
banking association, in its capacity as warrant agent hereunder, or any
successor thereto.


<PAGE>



                                    ARTICLE V

                                  Warrant Agent

     Section 5.1 LIMITATION ON LIABILITY. The Warrant Agent shall be protected
and shall incur no liability for or in respect of any action taken, suffered or
omitted by it in connection with its administration of the Call Warrants in
reliance upon any instrument of assignment or transfer, power of attorney,
endorsement, affidavit, letter, notice, direction, consent, certificate,
statement or other paper or document in good faith believed by it to be genuine
and to be signed, executed and, where necessary, verified and acknowledged, by
the proper Person or Persons.

     Section 5.2 DUTIES OF WARRANT AGENT. The Warrant Agent undertakes only the
specific duties and obligations imposed hereunder upon the following terms and
conditions, by all of which the Depositor, the Trust, the Trustee and each
Warrant Holder shall be bound:

          (a) The Warrant Agent may consult with legal counsel (who may be legal
counsel for the Depositor), and the opinion of such counsel shall be full and
complete authorization and protection to the Warrant Agent as to any action
taken or omitted by it in good faith and in accordance with such opinion,
provided the Warrant Agent shall have exercised reasonable care in the selection
by it of such counsel.

          (b) Whenever in the performance of its duties hereunder, the Warrant
Agent shall deem it necessary or desirable that any fact or matter be proved or
established by the Depositor or the Trustee prior to taking or suffering any
action hereunder, such fact or matter may be deemed to be conclusively proved
and established by a Depositor Order or a certificate signed by a Responsible
Officer of the Trustee and delivered to the Warrant Agent; and such certificate
shall be full authorization to the Warrant Agent for any action taken or
suffered in good faith by it hereunder in reliance upon such certificate.

          (c) The Warrant Agent shall be liable hereunder only for its own
negligence, willful misconduct or bad faith.

          (d) The Warrant Agent shall not be liable for or by reason of any of
the statements of fact or recitals contained herein or be required to verify the
same, but all such statements and recitals are and shall be deemed to have been
made by the Trust and the Depositor only.

          (e) The Warrant Agent shall not have any responsibility in respect of
and makes no representation as to the validity of the Call Warrants or the
execution and delivery thereof (except the due execution hereof by the Warrant
Agent); nor shall it be responsible for any breach by the Trust of any covenant
or condition contained in the Call Warrants; nor shall it by any act thereunder
be deemed to make any representation or warranty as to the Certificates to be
purchased thereunder.

          (f) The Warrant Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from the
Chairman of the Board, the Chief Executive Officer, Chief Financial Officer,
Chief Operating Officer, President, a Vice President, a Senior Vice President, a
Managing Director, its Treasurer, an Assistant Treasurer, its


<PAGE>




Secretary or an Assistant Secretary of the Depositor, and any Responsible
Officer of the Trustee, and to apply to such officers for advice or instructions
in connection with its duties, and it shall not be liable for any action taken
or suffered to be taken by it in good faith in accordance with instructions of
any such officer.

          (g) The Warrant Agent and any shareholder, director, officer or
employee of the Warrant Agent may buy, sell or deal in any of the Call Warrants
or other securities of the Trust or otherwise act as fully and freely as though
it were not Warrant Agent hereunder, so long as such persons do so in full
compliance with all applicable laws. Nothing herein shall preclude the Warrant
Agent from acting in any other capacity for the Trust, the Depositor or for any
other legal entity.

          (h) The Warrant Agent may execute and exercise any of the rights or
powers hereby vested in it or perform any duty hereunder either itself or by or
through its attorneys or agents.

          (i) The Warrant Agent shall act solely as the agent of the Trust
hereunder. The Warrant Agent shall not be liable except for the failure to
perform such duties as are specifically set forth herein, and no implied
covenants or obligations shall be read into the Call Warrants against the
Warrant Agent, whose duties shall be determined solely by the express provisions
thereof. The Warrant Agent shall not be deemed to be a fiduciary.

          (j) The Warrant Agent shall not be responsible for any failure on the
part of the Trustee to comply with any of its covenants and obligations
contained herein.

          (k) The Warrant Agent shall not be under any obligation or duty to
institute, appear in or defend any action, suit or legal proceeding in respect
hereof, unless first indemnified to its satisfaction, but this provision shall
not affect the power of the Warrant Agent to take such action as the Warrant
Agent may consider proper, whether with or without such indemnity. The Warrant
Agent shall promptly notify the Depositor and the Trustee in writing of any
claim made or action, suit or proceeding instituted against it arising out of or
in connection with the Call Warrants.

          (l) The Trustee will perform, execute, acknowledge and deliver or
cause to be performed, executed, acknowledged and delivered all such further
acts, instruments and assurances as may be required by the Warrant Agent in
order to enable it to carry out or perform its duties hereunder.

     Section 5.3 Change of Warrant Agent. The Warrant Agent may resign and be
discharged from its duties hereunder upon thirty (30) days notice in writing
mailed to the Depositor and the Trustee by registered or certified mail, and to
the Warrant Holders by first-class mail at the expense of the Depositor;
provided that no such resignation or discharge shall become effective until a
successor Warrant Agent shall have been appointed hereunder. The Depositor may
remove the Warrant Agent or any successor Warrant Agent upon thirty (30) days
notice in writing, mailed to the Warrant Agent or successor Warrant Agent, as
the case may be, and to the Warrant Holders by first-class mail; provided
further that no such removal shall become effective until a successor Warrant
Agent shall have been appointed hereunder. If the


<PAGE>


Warrant Agent shall resign or be removed or shall otherwise become incapable of
acting, the Depositor shall promptly appoint a successor to the Warrant Agent,
which may be designated as an interim Warrant Agent. If an interim Warrant Agent
is designated, the Depositor shall then appoint a permanent successor to the
Warrant Agent, which may be the interim Warrant Agent. If the Depositor shall
fail to make such appointment of a permanent successor within a period of thirty
(30) days after such removal or within sixty (60) days after notification in
writing of such resignation or incapacity by the resigning or incapacitated
Warrant Agent or by the Warrant Holder, then the Warrant Agent or registered
Warrant Holder may apply to any court of competent jurisdiction for the
appointment of such a successor. Any successor to the Warrant Agent appointed
hereunder must be rated in one of the four highest rating categories by the
Rating Agencies. Any entity which may be merged or consolidated with or which
shall otherwise succeed to substantially all of the trust or agency business of
the Warrant Agent shall be deemed to be the successor Warrant Agent without any
further action.

                                   ARTICLE VI

                                  Miscellaneous

     Section 6.1 REMEDIES. The remedies at law of the Warrant Holder in the
event of any default or threatened default by the Warrant Agent in the
performance of or compliance with any of the terms of the Call Warrants are not
and will not be adequate and, to the full extent permitted by law, such terms
may be specifically enforced by a decree for the specific performance of any
agreement contained herein or by an injunction against a violation of any of the
terms thereof or otherwise.

     Section 6.2 LIMITATION ON LIABILITIES OF WARRANT HOLDER. Nothing contained
in this Warrant Agent Agreement shall be construed as imposing any obligation on
the Warrant Holder to purchase any of the Certificates except in accordance with
the terms thereof.

     Section 6.3 NOTICES. All notices and other communications under this
Warrant Agent Agreement shall be in writing and shall be delivered, or mailed by
registered or certified mail, return receipt requested, by a nationally
recognized overnight courier, postage prepaid, addressed (a) if to any Warrant
Holder, at the registered address of such Warrant Holder as set forth in the
register kept by the Warrant Agent or (b) if to the Warrant Agent, to 100 Wall
Street, Suite 1600, New York, New York 10005, Attention: Corporate Trust or to
such other address notice of which the Warrant Agent shall have given to the
Warrant Holder and the Trustee or (c) if to the Trust or the Trustee, to the
Corporate Trust Office (as set forth in the Trust Agreement); provided that the
exercise of any Call Warrants shall be effective in the manner provided in
Article I.

     Section 6.4 AMENDMENT. (a) This Warrant Agent Agreement may be amended from
time to time by the Depositor, the Trustee and the Warrant Agent without the
consent of any Warrant Holder, upon receipt of an opinion of counsel
satisfactory to the Warrant Agent that the provisions hereof have been satisfied
and that such amendment would not alter the status of the Trust as a grantor
trust under the Code, for any of the following purposes: (i) to cure any
ambiguity or to correct or supplement any provision herein which may be
defective or inconsistent with any other provision herein or to provide for any
other terms or modify any


<PAGE>



other provisions with respect to matters or questions arising under the Call
Warrant which shall not adversely affect in any material respect the interests
of the Warrant Holder or any holder of a Certificate or (ii) to evidence and
provide for the acceptance of appointment hereunder of a Warrant Agent other
than U.S. Bank Trust National Association.

          (a) Without limiting the generality of the foregoing, the Call
Warrants may also be modified or amended from time to time by the Depositor, the
Trustee and the Warrant Agent with the consent of Warrant Holders of 66-2/3% of
each of the Call Warrants related to the Class A-1 Certificates and the Call
Warrants related to the Class A-2 Certificates, upon receipt of an opinion of
counsel satisfactory to the Warrant Agent that the provisions hereof (including,
without limitation, the following proviso) have seen satisfied, for the purpose
of adding any provisions to or changing in any manner or eliminating any of the
provisions of the Call Warrants or of modifying in any manner the rights of the
Warrant Holders; provided, however, that no such amendment shall (i) adversely
affect in any material respect the interests of holders of Certificates without
the consent of the holders of Certificates evidencing not less than the Required
Percentage-Amendment of the aggregate Voting Rights of such affected
Certificates (as such terms are defined in the Trust Agreement) and without
written confirmation from the Rating Agencies that such amendment will not
result in a downgrading or withdrawal of its rating of the Certificates; (ii)
alter the terms on which Call Warrants are exercisable or the amounts payable
upon exercise of a Warrant without the consent of the holders of Certificates
evidencing not less than 100% of the aggregate Voting Rights of such affected
Certificates and 100% of the affected Warrant Holders or (iii) reduce the
percentage of aggregate Voting Rights required by (i) or (ii) without the
consent of the holders of all such affected Certificates. Notwithstanding any
other provision of this Warrant, this Section 6.4(b) shall not be amended
without the consent of 100% of the affected Warrant Holders.

          (b) Promptly after the execution of any such amendment or
modification, the Warrant Agent shall furnish a copy of such amendment or
modification to each Warrant Holder, to the Trustee and to the Rating Agencies.
It shall not be necessary for the consent of Warrant Holders or holders of
Certificates under this Section to approve the particular form of any proposed
amendment, but it shall be sufficient if such consent shall approve the
substance thereof. The manner of obtaining such consents and of evidencing the
authorization of the execution thereof shall be subject to such reasonable
regulations as the Warrant Agent may prescribe.

     Section 6.5 EXPIRATION. The right to exercise the Call Warrants shall
expire on the earliest to occur of (a) the cancellation thereof, (b) the
termination of the Trust Agreement, (c) the liquidation, disposition, or
maturity of all of the Certificates, or (d) the occurrence of an Event of
Default under the Trust Agreement.

     Section 6.6 DESCRIPTIVE HEADINGS. The headings in this Warrant Agent
Agreement are for purposes of reference only and shall not limit or otherwise
affect the meaning hereof.

     Section 6.7 GOVERNING LAW. THIS CALL WARRANT SHALL BE CONSTRUED AND
ENFORCED IN ACCORDANCE WITH, AND THE RIGHTS OF THE PARTIES SHALL BE GOVERNED BY,
THE LAW OF THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICT OF
LAWS.


<PAGE>




     Section 6.8 JUDICIAL PROCEEDINGS; WAIVER OF JURY. Any judicial proceeding
brought against the Trust, the Trustee or the Warrant Agent with respect to this
Warrant Agent Agreement may be brought in any court of competent jurisdiction in
the County of New York, State of New York or of the United States of America for
the Southern District of New York and, by execution and delivery of the Call
Warrants, the Trustee on behalf of the Trust and the Warrant Agent (a) accept,
generally and unconditionally, the nonexclusive jurisdiction of such courts and
any related appellate court, and irrevocably agree that the Trust, the Trustee
and the Warrant Agent shall be bound by any judgment rendered thereby in
connection with this Warrant Agent Agreement or the Call Warrants, subject to
any rights of appeal, and (b) irrevocably waive any objection that the Trust,
the Trustee or the Warrant Agent may now or hereafter have as to the venue of
any such suit, action or proceeding brought in such a court or that such court
is an inconvenient forum.

     Section 6.9 NONPETITION COVENANT; NO RECOURSE. Each of (i) the Warrant
Holder by its acceptance thereof, and (ii) the Warrant Agent agrees, that it
shall not (and, in the case of the Warrant Holder, that it shall not direct the
Warrant Agent to), until the date which is one year and one day after the
payment in full of the Certificates and all other securities issued by the
Trust, the Depositor or entities formed, established or settled by the
Depositor, acquiesce, petition or otherwise invoke or cause the Trust, the
Depositor, or any such other entity to invoke the process of the United States
of America, any State or other political subdivision thereof or any entity
exercising executive, legislative, judicial, regulatory or administrative
functions of or pertaining to government for the purpose of commencing or
sustaining a case by or against the Trust, the Depositor or any such other
entity under a federal or state bankruptcy, insolvency or similar law or
appointing a receiver, liquidator, assignee, trustee, custodian, sequestrator or
other similar official of the Trust, the Depositor or any such other entity or
all or any part of the property or assets of Trust, the Depositor or any such
other entity or ordering the winding up or liquidation of the affairs of the
Trust, the Depositor or any such other entity.



<PAGE>


     Each of (i) the Warrant Holder, by its acceptance thereof, and (ii) the
Warrant Agent agrees, that it shall not have any recourse to the Certificates.





                                           LEHMAN ABS CORPORATION,
                                              as Depositor


                                           By:
                                               ---------------------------------
                                           Name:  Rene Canezin
                                           Title: Senior Vice President


                                           U.S. BANK TRUST NATIONAL ASSOCIATION,
                                                not in its individual
                                                capacity but solely as
                                                Trustee and Authenticating Agent


                                           By:
                                               ---------------------------------
                                                Authorized Signatory


                                           U.S. BANK TRUST NATIONAL ASSOCIATION,
                                                as Warrant Agent


                                           By:
                                               ---------------------------------
                                                Authorized Signatory






<PAGE>


                                    EXHIBIT C

                            FORM OF INVESTMENT LETTER

                          QUALIFIED INSTITUTIONAL BUYER

                                                        Dated: [_______________]

U.S. Bank Trust National Association,
100 Wall Street
New York, New York 10005

Lehman Brothers Inc.
  as initial Warrant Holder
3 World Financial Center
New York, New York 10285

Lehman ABS Corporation
3 World Financial Center
New York, New York 10285

Ladies and Gentlemen:

     In connection with our proposed purchase of ___________ Call Warrants (the
"Call Warrants") representing an interest in the Corporate Backed Trust
Certificates AT&T Note-Backed Series 2001-33 Trust (the "Trust"), the investor
on whose behalf the undersigned is executing this letter (the "Purchaser")
confirms that:

     (1) Reference is made to the Prospectus Supplement, dated August 27, 2001
(the "Prospectus Supplement"), with respect to the Certificates to which the
Call Warrants relate. Capitalized terms used herein that are not otherwise
defined shall have the meanings ascribed thereto in the Prospectus Supplement.
The Purchaser has received a copy of the Prospectus Supplement and such other
information as the Purchaser deems necessary in order to make its investment
decision and the Purchaser has been provided the opportunity to ask questions
of, and receive answers from, the Depositor and the Underwriters, concerning the
terms and conditions of the Call Warrants. The Purchaser has received and
understands the above, and understands that substantial risks are involved in an
investment in the Call Warrants. The Purchaser represents that in making its
investment decision to acquire the Call Warrants, the Purchaser has not relied
on representations, warranties, opinions, projections, financial or other
information or analysis, if any, supplied to it by any person, including you,
the Depositor or the Trustee or any of your or their affiliates, except as
expressly contained in the Prospectus Supplement and in the other written
information, if any, discussed above. The Purchaser has such knowledge and
experience in financial and business matters as to be capable of evaluating the
merits and risks of an investment in the Call Warrants, and the Purchaser is
able to bear the substantial economic risks of such an investment. The Purchaser
has relied upon its own tax, legal and financial advisors in connection with its
decision to purchase the Call Warrants.


<PAGE>


     (2) The Purchaser is (A) a "Qualified Institutional Buyer" (as defined in
Rule 144A under the Securities Act of 1933, as amended (the "1933 Act")) and (B)
acquiring the Call Warrants for its own account or for the account of an
investor of the type described in clause (A) above as to each of which the
Purchaser exercises sole investment discretion. The Purchaser is purchasing the
Call Warrants for investment purposes and not with a view to, or for, the offer
or sale in connection with, a public distribution or in any other manner that
would violate the 1933 Act or the securities or blue sky laws of any state.

     (3) The Purchaser understands that the Call Warrants have not been and will
not be registered under the 1933 Act or under the securities or blue sky laws of
any state, and that (i) if it decides to resell, pledge or otherwise transfer
any Call Warrant, such Call Warrant may be resold, pledged or transferred
without registration only to an entity that has delivered to the Depositor and
the Trustee a certification that it is a Qualified Institutional Buyer that
purchases (1) for its own account or (2) for the account of such a Qualified
Institutional Buyer, that is, in either case, aware that the resale, pledge or
transfer is being made in reliance on said Rule 144A and (ii) it will, and each
subsequent holder will be required to, notify any purchaser of any Call Warrant
from it of the resale restrictions referred to in clause (i) above.

     (4) The Purchaser understands that each of the Call Warrants will bear a
legend to the following effect, unless otherwise agreed by the Depositor and the
Trustee:

     "THIS CALL WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED, AND MAY NOT BE TRANSFERRED, SOLD OR OTHERWISE DISPOSED OF
EXCEPT WHILE A REGISTRATION UNDER SUCH ACT IS IN EFFECT OR PURSUANT TO AN
EXEMPTION THEREFROM UNDER SUCH ACT. THIS CALL WARRANT REPRESENTED HEREBY MAY BE
TRANSFERRED ONLY IN COMPLIANCE WITH THE CONDITIONS SPECIFIED IN THIS CALL
WARRANT."

     (5) The Purchaser understands that no subsequent transfer of the Call
Warrants is permitted unless it causes its proposed transferee to provide to the
Depositor and the initial Warrant Holder a letter substantially in the form of
Exhibit C to the Series Supplement, as applicable, or such other written
statement as the Depositor shall prescribe.

     (6) The Purchaser agrees that if at some time in the future it wishes to
transfer or exchange any of the Call Warrants, it will not transfer or exchange
any of the Call Warrants unless such transfer or exchange is in accordance with
Section 3.2 of the Warrant Agent Agreement. The Purchaser understands that any
purported transfer of the Call Warrants (or any interest therein) in
contravention of any of the restrictions and conditions in the Trust Agreement,
as applicable, shall be void, and the purported transferee in such transfer
shall not be recognized by the Trust or any other Person as a Warrant Holder.

<PAGE>


     You and the Trustee are entitled to rely upon this letter and are
irrevocably authorized to produce this letter or a copy hereof to any interested
party in any administrative or legal proceeding or official inquiry with respect
to the matters covered hereby.

                                         Very truly yours,

                                         By:
                                            ------------------------------------
                                            Name:
                                            Title:

                                         [Medallion Stamp to be affixed here]