definiens: means the materials listed on Schedule D hereto ; means the value to be attributed to the Active Ma terials for certain purposes of this Agreement, as set forth on Schedul e D ; means : ( a ) a business entity which owns, directly or indir ectly, a controlling interest in a party to this Ag reement, by stock ownership or otherwise, only for so long a s such ownership continues to exist ; or ( b ) a business entity which is controlled by a part y to this Agreement, either directly or indirectly, by stock ownership or otherwise, only for so long as such co ntrol continues to exist ; or ( c ) a business entity, the controlling interest of which is directly or indirectly common to the major ity ownership of a party to this Agreement, only for so long as such controlling interest continues to exi st ; For the purposes of this definition, mean s the ownership of shares carrying at least a major ity of the votes in respect of the election of the directo rs of a corporation