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 starting quarterback for the minnesota vikings this year?" whose answer is Case Keenum.
Each document should contain about 30 words, and these documents should contain useful information.

Query: starting quarterback for the minnesota vikings this year
Useful Output:

Doc 1: Darnold walking likely clears the way for second-year QB J.J. McCarthy to start for Minnesota. The Vikings drafted McCarthy 10th overall out
Doc 2: [Rapoport] The Vikings list QB Sam Darnold as the starter on their initial depth chart, not a surprise. r/nfl icon.
Doc 3: OFFSEASON Enjoy today's show! Watch another Minnesota Vikings YouTube video now! - Vikings  What are your thoughts on this Vikings season?
Doc 4: The Vikings returned veteran QB Nick Mullens for his third season with Minnesota. They signed free agent Sam Darnold in March to a one-year deal.
Doc 5: Minnesota Vikings Sign QB Daniel Jones to 53 Man Roster · Comments110.