Scheduled  Principal  Balances: The  Scheduled  Principal  Balances  for  the  Classes  listed below are included in Schedule II to this Supplement. They were calculated using, among other things, the following Structuring Range or Rate: Class Structuring Range or Rate OP ............................................................................................................ 100% PSA through 300% PSA FW ............................................................................................................ 325% PSA Accrual Classes:  Interest will accrue on each Accrual Class identified on the front cover of this Supplement  at  the  per  annum  rate  set  forth  on  that  page.  However,  no  interest  will  be distributed to the Accrual Classes until the Distribution Date following the Distribution Date on which the Class Principal Balances of the related Accretion Directed Classes have been reduced to zero. Interest so accrued on each Accrual Class on each Distribution Date will constitute an Accrual Amount, which will be added to the Class Principal Balance of that Class on each Distribution Date and will be distributable as principal as set forth in this Terms Sheet under "Allocation of Principal." After interest distributions commence on an Accrual Class, interest distributions will continue until the Class Principal Balance of that Class is reduced to zero. Notional Classes:  The Notional Classes will not receive distributions of principal but have Class Notional Balances for convenience in describing their entitlements to interest. The Class Notional Balance of each Notional Class represents the percentage indicated below of, and reduces to that extent with, the Class Principal Balance indicated: Original Class Class Notional Balance Represents Approximately IN   .................................................. $  72,500,000 100% of FN (PT Class) IY   .................................................. 10,000,000 100% of FY (PT Class) KI   .................................................. 232,142,857 100% of FK (PT Class) SA   .................................................. 464,285,713 100% of FA (PT Class) SB  .................................................. 100,000,000     21.5384615981% of FA (PT Class) SC  .................................................. 121,428,571     26.1538461340% of FA (PT Class) SD  .................................................. 121,428,571     26.1538461340% of FA (PT Class) SE   .................................................. 121,428,571     26.1538461340% of FA (PT Class) SG  .................................................. 124,999,999     53.8461534485% of FK (PT Class) SM  .................................................. 232,142,857 100% of FK (PT Class) SN  .................................................. 107,142,858     46.1538465515% of FK (PT Class) SW .................................................. 113,031,429 100% of FW (TAC/AD Class) Tax Status:  Double REMIC Series. See "Certain Federal Income Tax Consequences" in this Supplement and in the Base Offering Circular. Regular and Residual Classes:  Class RR is a Residual Class and includes the Residual Interest of the Issuing REMIC and the Residual Interest of the Pooling REMIC; all other Classes of REMIC Securities are Regular Classes. B-7