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: "Baker Reagan Mayfield, is a college American football quarterback for the Oklahoma Sooners, after sitting out the 2014 season due to NCAA transfer rules, Mayfield won the starting quarterback job in 2015 over which incumbent starter, an American football quarterback for the Atlanta Falcons of the National Football League (NFL)?" whose answer is Trevor Knight.
Each document should contain about 30 words, and these documents should contain useful information.

Query: starting quarterback for Oklahoma Sooners 2014
Useful Output:

Doc 1: Then he started red-shirt freshman backup Trevor Knight at quarterback to run it. Knight had only started four games through the season
Doc 2: The Oklahoma Sooners are making waves with the appointment of Ben Arbuckle as their new offensive coordinator. As the Sooners gear up for
Doc 3: Thomas was a two-sport star in football and baseball. He would redshirt his freshman season in 2013 and made three starts for Oklahoma in 2014.
Doc 4: Oklahoma Sooners QB Jackson Arnold Makes First Start vs Arizona | What Did We Learn? 30K views · 1 year ago more
Doc 5: Cody Thomas. NORMAN, OK - DECEMBER 6: Quarterback Cody Thomas #14 of the Oklahoma Sooners. Starting a total of three games during the 2014