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 wrote the music for the star spangled banner?" whose answer is Francis Scott Key.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who wrote the music for the star spangled banner
Useful Output:

Doc 1:  song. Soon afterward, Thomas Carr, the owner of a music store in Baltimore, published the words and music together with the name "The Star-Spangled Banner.
Doc 2: On September 14, 1814, Francis Scott Key pens a poem which is later set to music and in 1931 becomes America's national anthem,
Doc 3: John Stafford Smith (1750–1836) wrote the music. He was not a member of the club but was well known in London as organist at the Chapel Royal, a composer and a
Doc 4: It was written by British composer and organist John Stafford Smith in the late 1770s as the official song of London's 'Anacreon Society'.
Doc 5: Written around 1775 by John Stafford Smith, the song honored the ancient Greek poet Anacreon, a lover of wine. It was originally performed at a