Question: From 1994 to 2002, Hollingshead was an assistant to R. C. Slocum at Texas A&M University, coaching tight ends and special teams, prior to that, he served as head coach at famed Permian High School, a public high school located in Odessa, Texas and is one of three high schools in which district?
Sentence (from "B.M.C. Durfee High School"): These three high schools make up the Big Three League, the conference in which all their athletic teams compete.
Relevant evidence: No