You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Who is the athletic director of the university that used to have Barry Switzer as a head coach?" whose answer is Joe Castiglione.
Each document should contain about 30 words, and these documents should contain useful information.

Query: University of Oklahoma athletic director
Useful Output:

Doc 1: It was a big day on the Unofficial 40 as Joe Castiglione, the father of one half of The Family Business came in studio to talk with Carey
Doc 2: University of Oklahoma's Athletic Director, Joe Castiglione, has announced he will be retiring at the end of the 2023-2024 academic school year.
Doc 3: Want the best Sooners' intel and info in the industry? Want to be a part of a community of THOUSANDS of Sooner fans that you can talk with
Doc 4: View photos of OU athletic director Joe Castiglione, who joined the Sooners as AD in 1998.
Doc 5: Why did OU commit to playing sports during the pandemic?? An in-depth exchange with the longtime Sooners AD who shares his emotions,