Class A-1 Certificates All Certificates bearing the class designation of "Class A-1".
Class B-1 Certificates All Certificates bearing the class designation of "Class B-1".
Group 1 Certificates As specified in the Preliminary Statement.
Class I-A-1 Certificate Any Certificate designated as a “Class I-A-1 Certificate” on the face thereof, in the form of Exhibit A-1 hereto, representing the right to the Percentage Interest of distributions provided for the Class I-A-1 Certificates as set forth herein and evidencing (i) a Regular Interest in REMIC III, (ii) the right to receive Basis Risk Shortfall Carry Forward Amounts and (iii) the obligation to pay Class IO Distribution Amounts.
Class B-2 Certificates All Certificates bearing the class designation of "Class B-2".