definiens: means, on a country - by - country andLicensed Product - by - Licensed Product basis, after the Generic Product Entry, the earlier of ( a ) the firstCalendar Quarter in which the Net Sales of such Licensed Product in such country sold by or on behalf ofSQZ or its Affiliates or sublicensees is less than [ * * * ] percent ( [ * * * ] % ) of the average quarterly Net Salesof such Licensed Product by or on behalf of SQZ or its Affiliates or sublicensees in each of the four ( 4)Calendar Quarters immediately preceding the Generic Product Entry or ( b ) the first Calendar Quarter inwhich Generic Products available in such country have obtained sales greater than [ * * * ] percent ( [ * * * ] % ) of the combined sales of the Licensed Product together with such Generic Products, as measured bynumber of units sold, and which Generic Product sales are evidenced by independent market data(where available ), such as that published by IMS International, or if such data is not available, such otherreliable data source as reasonably determined by the Parties