Class Original Class Notional Balance Represents For each Distribution Date from September 2006 through and including the Distribution Date in August 2007, the aggregate of (a) the Second Class B Notional Contribution, (b) the Second Class C Notional Contribution and (c) 100% of D, E, F and G (in the aggregate)(SEQ Classes); For each Distribution Date from September 2007 through and including the Distribution Date in August 2008, the aggregate of (a) the Class E Notional Contribution and (b) 100% of F and G (in the aggregate) (SEQ Classes); For each Distribution Date from September 2008 through and including the Distribution Date in August 2009, the aggregate of (a) the First Class F Notional Contribution and (b) the First Class G Notional Contribution; For each Distribution Date from September 2009 through and including the Distribution Date in August 2010, the aggregate of (a) the Second Class F Notional Contribution and (b) the Second Class G Notional Contribution; and thereafter, zero. Tax Status: Double REMIC Series. See "Certain Federal Income Tax Consequences" in this Supplement and in the Multifamily Base Offering Circular. Regular  and  Residual  Classes: Class  RR  is  a  Residual  Class  and  includes  the  Residual Interest of the Issuing REMIC and the Pooling REMIC; all other Classes of REMIC Securities are Regular Classes. C-17