1. Plaintiff, A. B., has filed against defendant, C. D., a complaint, a copy of which is attached as Exhibit A.

2. If the defendant, C. D., is liable to the plaintiff on the occasion complained of in the complaint, it is liable because [here state the grounds upon which C. D., is entitled to recover from E. F., all or part of what A. B. may recover from C. D. The statement should be framed as in an original complaint.]

Wherefore, C. D. demands judgment against third-party defendant E. F. for all sums that may be adjudged against defendant C. D. in favor of plaintiff, A. B.