Question: What is the seating capacity of the stadium as of 2015 in which 1971 Oklahoma Sooners football team payed their home games?
Sentence (from "1971 Oklahoma Sooners football team"): The Sooners finished the season ranked #2, losing only once, 35–31 to eventual national champion Nebraska in the 1971 Nebraska vs. Oklahoma football game, which has become known as Game of the Century.
Relevant evidence: No