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 was the band that sang "I'm One" formed?" whose answer is 1964.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when was the band The Who formed
Useful Output:

Doc 1: The Who is an English rock band formed in London in 1964. Their classic lineup consisted of lead vocalist Roger Daltrey, guitarist Pete
Doc 2: But what about the band's beginnings? The four schoolboys from London formed the band in 1964 and went on to become rock and roll icons.
Doc 3: Well into the band's career, Melody Maker declared, "Surely The Who are now the band against which all others are to be judged." In 1990, the first year of
Doc 4: When Roger Daltrey, Pete Townshend, John Entwistle and Keith Moon formed The Who in 1964, they changed rock 'n' roll forever.
Doc 5: The Who is a legendary British rock band formed in 1964, known for their energetic performances and pioneering contributions to rock music.