definiens: means, on a country -by - country basis, any process, method or service ( a ) that is performed or provided using a Group A Licensed Product or ( b ) that does n ot fall within the definition of clause ( a ) but the performing or providing of which process, method or service in the country in question is Covered by at least one Valid Claim of the Group A Patent Rights . If, during the Royalty Term for a Group A Licens ed Service that falls under the foregoing clause ( b ), such Group A Licensed Service is no longer Covered by at least one such Valid Claim in a country, then such Group A Licensed Service shall be deemed a Group A Enabled Service in such country from that t ime forward for the purposes of calculating Milestone Payments under Section 4.4 and Royalties under Section 4.5, unless and until such service is again Covered by at least one Valid Claim of the Group A Patent Rights, at which time such service shall agai n be deemed a Group A Licensed Service for such purposes