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 the pittsburgh penguins become a team?" whose answer is 1967.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the pittsburgh penguins become a team
Useful Output:

Doc 1: The thing is, though, the strange days started before the Penguins played their first game on Oct. 11, 1967. As franchise founder Jack McGregor
Doc 2: When the Pittsburgh Penguins got started in 1967, the colors were originally blue and white. The team switched colors in 1980 to the black
Doc 3: The Pittsburgh Penguins were founded in 1967 and began play in the NHL in the 1967-68 season. The Penguins struggled in their early years and
Doc 4: Pittsburgh's NHL franchise was introduced on February 8th, 1966, and the Pittsburgh Post-Gazette and Mellon National Bank held a contest for
Doc 5: The Penguins launch their quest to become the first NHL team in 35 years to win three Stanley Cup championships in a row Wednesday.