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: "when did they start singing god bless america at baseball games?" whose answer is September 11 attacks.
Each document should contain about 30 words, and these documents should contain useful information.

Query: "God Bless America" start time at baseball games
Useful Output:

Doc 1: Does "God Bless America" belong in baseball games? Discussion. I'm curious what others think of the singing of "God Bless America" during games.
Doc 2: The Yankees are the only remaining team in baseball to regularly play “God Bless America” during the seventh-inning stretch of their home games.
Doc 3: We were blessed with the opportunity to sing God Bless America at the Royals baseball game yesterday @kauffman.stadium in Kansas City!
Doc 4: For a full season following the tragedy of 9/11, “God Bless America” was sung during the seventh-inning stretch at every major league ballpark.
Doc 5: Daily News columnist, Gersh Kuntzman published an article pleading with the MLB to ban, 'God Bless America' from being played during games.