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: "Where did the third collaboration open by Richard Rodgers  and Oscar Hammerstein II , The form began to flourish in the late 1960s?" whose answer is Broadway.
Each document should contain about 30 words, and these documents should contain useful information.

Query: the development of the musical form in the late 1960s
Useful Output:

Doc 1: Initially the province of jazz and beat poetry, they quickly changed over to folk as the audience for that music began to grow and earnest
Doc 2: The Broadway musicals of the 1960s broke with the traditions of the Golden Age, and laid the groundwork for the revitalization of the form
Doc 3: The fusion of genres from movements like the British Invasion, Motown Records, and Folk Rock crossed both musical and racial barriers. 60s artists created
Doc 4: The new decade brought tectonic political shifts, the quickening rise of rock and pop music, and the emergence of a youth counterculture. In
Doc 5: Folks in their 60s circa 1960 would have been into Jazz, Blues, Ragtime Swing and Dance Band amongst other genres. This is prior to the advent