definiens: means, with respect to either Party, any Person t hat directly or indirectly controls, is controlled by or is under common control with su ch Party ; for purposes of this definition, the term ( including, with correlative meaning, the terms or ) means direct or indirect ownership of more than fifty percent ( 50 % ), including ownership by trusts with substantially the same beneficial interests, of the voting and equity righ ts of such Person, firm, trust, corporation, partne rship or other entity or combination thereof, or the power to dire ct the management of such Person, firm, trust, corp oration, partnership or other entity or combination thereof ; provided however, that with respect to Sigilon, Af filiate shall not include Flagship Pioneering or any Person ( othe r than Sigilon or any of its subsidiaries ) controll ed ( as defined in this Section 1.5 ) by Flagship Pioneering