definiens: means, with respect to the Compound or any Licens ed Product, any agreement entered into by and between Everest o r any of its Affiliates or its or their Sublicensee s, on the one hand, and one or more Third Parties, on the other h and, that is necessary or reasonably useful for the Exploitation of the Compound or a Licensed Product in the Licens ed Field in the Territory, including without limita tion : ( a ) any agreement ( other than this Agreement ) pursuant to which Everest, any of its Affiliates or any of i ts or their Sublicensees receives any license or other rights t o Exploit the Compound or a Licensed Product ; ( b ) a ny supply agreement ( other than the Initial Supply Agreement and the Commercial Supply Agreement ) pursuant to wh ich Everest, any of its Affiliates or any of its or the ir Sublicensees obtains quantities of the Compound or a Licensed Product ; ( c ) any clinical trial agreements ; ( d ) any contract research organization agreements ; and ( e ) any service agreements