Question: In 2015, what was the official seating capacity of the stadium at which the 1964 Sooners played their home games?
Sentence (from "Gaylord Family Oklahoma Memorial Stadium"): Gaylord Family - Oklahoma Memorial Stadium, also known as Owen Field or The Palace on the Prairie, is the on-campus football facility on the campus of the University of Oklahoma in Norman, Oklahoma, United States, that serves as the home of the Oklahoma Sooners football team.
Relevant evidence: No