definiens: means each separate class of products within a program [ * * ], where there is an initial class ofproducts ( i.e. a Licensed Product with certain Gene Target modifications and directed to certain Protein Targets ) andwhether a subsequent product is a new class of Licensed Products resulting in additional milestones underSection 6.4 shall be determined as follows : ( a ) any new Gene Target modification done under the Research Programis a new class of Licensed Product within the applicable program, and ( b ) if there is not a new Gene Targetmodification, but there is [ * * ] that targets a Protein Target ( and that Protein Target was not targeted in a previousclass of Licensed Product within the same program [ * * ] for which the milestones under Section 6.4 were paid ), then(i ) if the Licensed Product is to be approved for same indication as the prior Licensed Product, then such LicensedProduct is not a new class and no new milestones accrue under Section 6.4, or ( ii ) if the Licensed Product will beapproved for a new indication compared to the prior Licensed Product, then the Licensed Product is a new class of Licensed Product under theapplicable program and additional milestones will accrue under Section 6.4