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: "John Coolidge Adams is an American composer of classical music and opera whose first opera was inspired by U.S. President Richard Nixon's visit to China in what year?" whose answer is 1972.
Each document should contain about 30 words, and these documents should contain useful information.

Query: John Coolidge Adams first opera inspired by Nixon's visit to China
Useful Output:

Doc 1: Adams, arguably our greatest living composer, has done operas inspired  “Nixon in China,” Adams's first opera, at the Met in 2011.Credit
Doc 2: The opera “Nixon in China” demonstrates the thirty-seventh US president Richard Nixon's trip to China in 1972. This musical work consists of
Doc 3: Of his first opera, The New Yorker Magazine said, “Not since Porgy and Bess has an American opera won such universal acclaim as Nixon in China.
Doc 4:  first libretti for Nixon in China and The Death of Klinghoffer. We have in those operas real soliloquies and arias and choruses. But in this
Doc 5: Adams is known for works including the opera “Nixon in China” and concert pieces such as “Shaker Loops,” “Harmonielehre,” “Road Movies,” “Chamber Symphony” and