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 sang the revolution will not be televised?" whose answer is Gil Scott-Heron.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who sang the revolution will not be televised
Useful Output:

Doc 1: "The Revolution Will Not Be Televised" is a poem and song by Gilbert "Gil" Scott-Heron (April 1, 1949 – May 27, 2011). Song was originally a
Doc 2: I love Gil Scott-Heron. · What his famous piece “The Revolution Will Not Be Televised” says is that the coming changes in the African-American
Doc 3: Gil Scott-Heron wrote “The Revolution Will Not Be Televised,” finding inspiration in a world of unrest and rage.
Doc 4: 50 years after Gil Scott-Heron released the definitive version of his song “The Revolution Will Not Be Televised”, it is still being broadcast, sampled and
Doc 5: Revisit the revolutionary poem and song Gil Scott-Heron penned in 1970 as bold call-to-action for change in a racially divided America.