definiens: ) based upon the ( as defined below ) that the [COMPANY] Partner, [COMPANY] Corporation or their respective Affiliates derive from each such ExcludedProduct, in the manner and as set forth below : ( 1 ) With respect to each Excluded Product that is ( as defined below ) by the [COMPANY] Partner, [COMPANY] Corporation or theirrespective Affiliates, the Royalty shall equal Fifteen Percent ( 15 % ) of NetSales of such Excluded Product derived by the [COMPANY] Partner, [COMPANY] Corporationor their respective Affiliates and shall be payable commencing on and after the ( as defined below ) for so long as such Excluded Product issold, until such time, if any, as : ( i ) a generic version of the same Excluded Product is Internally Developed by the [COMPANY] Partner or its respective Affiliates, in which case the Royalty shall terminate with respect to such Excluded Product as to any Net Sales occurring on and after the date of the first commercial sale of such generic version by the [COMPANY] Partner or its respective Affiliates ; or ( ii ) a generic version of the same Excluded Product is ( as defined below ) by the [COMPANY] Partner or its respective Affiliates, in which case the Royalty shall continue provided that it shall be reduced for such Excluded Product to Seven and One - Half Percent ( 7.5 % ) as to any Net Sales occurring 4 < PAGE > on and after the date of the first commercial sale of such generic version by the [COMPANY] Partner or its respective Affiliates