Question: Boomer and Sooner are two matching white ponies who pull the Sooner Schooner, a Conestoga wagon across the field when the University of Oklahoma football team scores, The Sooner Schooner represents the University of Oklahoma as a mascot for the University and its sports teams, what is the name that are the athletic teams that represent the University of Oklahoma, located in Norman?
Sentence (from "Oklahoma Sooners"): The university's athletic teams compete in the National Collegiate Athletic Association (NCAA)'s Division I in the Big 12 Conference.
Relevant evidence: No