Question: What is a multi-purpose stadium used mostly for American football in St. Louis, that held The 1996 Dr Pepper Big 12 Championship Game?
Sentence (from "1996 Big 12 Championship Game"): The 1996 Dr Pepper Big 12 Championship Game was held on December 7, 1996, at The Dome at America's Center, then known as Trans World Dome, in St. Louis, Missouri.
Relevant evidence: Yes