Rebuttal of exclusivity.
(ii) Rebuttal of exclusivity. The controlled participants may rebut the presumption set forth in paragraph (c)(2)(i) of this section to the satisfaction of the Commissioner. For example, if the platform resource is a research tool, then the controlled participants could rebut the presumption by establishing to the satisfaction of the Commissioner that, as of the date of the PCT, the tool is reasonably anticipated not only to contribute to the CSA Activity but also to be licensed to an uncontrolled taxpayer. In such case, the PCT Payments may need to be prorated as described in paragraph (c)(2)(iii) of this section.