Schedule I Available Combinations(1) REMIC Securities MX Securities Class
Original Class Principal Balance or Class Notional Balance Related MX Class Maximum Original Class Principal Balance(2) Principal Type(3) Interest Rate Interest Type(3) CUSIP Number Final Distribution Date(4) Security Group 1 Combination 1 B $  32,313,000 DA $  63,475,000 SEQ 5.5% FIX 38373SF93 March 2033 VA 16,775,000 Z 14,387,000 Combination 2 IO $  55,043,909 PA $315,483,000 SCH/AD 5.0% FIX 38373SG27 October 2028 PC 290,000,000 PD 25,483,000 Combination 3 IO $  55,043,909 PG $404,383,000 SCH/AD 5.0% FIX 38373SG35 July 2031 PB 88,900,000 PC 290,000,000 PD 25,483,000 Security Group 2 Combination 4 PO $  15,384,615 SA $  15,384,615 PT (5) INV 38373SG43 March 2033 S 200,000,000 (1)  All exchanges must comply with minimum denominations restrictions. (2)  The amount shown for each MX Class represents the maximum Original Class Principal Balance of that Class, assuming it were to be issued on the Closing Date. (3)  As defined under "Class Types" in Appendix I to the Base Offering Circular. (4)  See "Yield, Maturity and Prepayment Considerations – Final Distribution Date" in this Supplement. (5)  The Interest Rate will be calculated as described under "Terms Sheet – Interest Rates" in this Supplement. B-1