Question: Who is the full-sister to the retired American Thoroughbred racehorse that was raised by a race horse trainer born July 9, 1941?
Sentence (from "Robert J. Frankel"): Robert Julian Frankel (July 9, 1941 – November 16, 2009) was an American thoroughbred race horse trainer whom ESPN called "one of the most successful and respected trainers in the history of thoroughbred racing."
Relevant evidence: Yes