definiens: means ( a ) with respect to the first Contract Year, the period beginning on the Effective Date and endingon December 31, 2008 ( the ), ( b ) with respect to each subsequent Contract Year other than the lastContract Year, the one ( 1 ) year period beginning on the day following the end of the First Contract Year and each succeedingone ( 1 ) year period thereafter, and ( c ) with respect to the last Contract Year, the period beginning on January 1 of such lastContract Year and ending on the date as of which this Agreement expires or is terminated ( the ) . EachContract Year ( other than the First Contract Year or the Last Contract Year ) shall be divided into four ( 4 ) comprised of successive three ( 3 ) month periods . In the First Contract Year, the first Contract Quarter shall end onthe first day following the Effective Date that is the last day of a Contract Quarter, and in the Last Contract Year, the lastContract Quarter shall end upon expiration or termination of the Agreement