definiens: means ( a ) with respect to Original Royalty Products the period of time in a particular country commencing with theEﬀective Date and expiring on the earlier of ( i ) the [ * * * ] of the Eﬀective Date or ( ii ) [ * * * ] from the date of First Commercial Sale in thecountry in question for the applicable Original Royalty Product, and ( b ) with respect to a CAT19 1 Gen Product the period of time in aparticular country commencing with the Second Amendment Date and expiring on the earlier of ( i ) the [ * * * ] of the Second AmendmentDate or ( ii ) [ * * * ] from the date of First Commercial Sale in the country in question for the applicable CAT19 1 Gen Product and ( c ) withrespect to a CAT19 Binder Product the period of time in a particular country commencing with the Second Amendment Date and expiringon the earlier of ( i ) the [ * * * ] of the Second Amendment Date or ( ii ) [ * * * ] from the date of First Commercial Sale in the country in questionfor the applicable CAT19 Binder Product, and ( d ) with respect to a CAT19 CNS Product the period of time in a particular countrycommencing with the Third Amendment Date and expiring on the earlier of ( i ) the [ * * * ] of the Third Amendment Date or ( ii ) [ * * * ] from thedate of First Commercial Sale in the country in question for the applicable CAT19 CNS Product ; and, ii .