definiens: means ( A ) any Program Technology, other than ( 1 ) Product Technology that covers themechanism of action and/or mechanism of inhibition of a Collaboration Compound and/or Licensed Product and ( 2)Collaboration Compounds that were identified by either Party in the conduct of the Research Program, that is ( a ) jointlyconceived or first reduced to practice by one or more employees of or consultants to DS and one or more employees of orconsultants to ARQULE, ( b ) conceived or first reduced to practice solely by one or more employees of, or consultants to, a Partyresulting from the use in any material respect of any ( i ) Joint Technology or ( ii ) Patent Rights, Technology or ProprietaryMaterials Controlled by the other Party, and ( B ) any Product Technology that covers the composition of matter, synthesis, formulation, delivery and/or method of use ( as a single agent or in combination with another agent ) of a CollaborationCompound and/or Licensed Product that is conceived or first reduced to practice solely by one or more employees of orconsultants to DS, alone or jointly with any Third Party