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 was the movie american sniper based on?" whose answer is Chris Kyle.
Each document should contain about 30 words, and these documents should contain useful information.

Query: "American Sniper" based on
Useful Output:

Doc 1: Released in the final weeks of 2014 to qualify for awards season, American Sniper was released to good reviews and a successful box office.
Doc 2: "American Sniper" tells the story of soldier Chris Kyle's life and while the book was based on his autobiography, the ending changed after
Doc 3: Kyle wrote a memoir about his experiences in 2013, also called American Sniper, in which he recounted his deeds and those of his fellow SEALs.
Doc 4: He was decorated and declared the most lethal sniper in US military history. Clint Eastwood's American Sniper is based on his memoir, in
Doc 5: American Sniper is an acclaimed thriller adapted from Chris Kyle's memoir. But the film took some liberties with its true story – what did