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: "What song debuted in the October 27, 1999 episode of South Park?" whose answer is Falling Away from Me.
Each document should contain about 30 words, and these documents should contain useful information.

Query: South Park episode 1999 October 27 song debut
Useful Output:

Doc 1: TIL That the South Park episode 'Korn's Groovy Pirate Ghost Mystery' served as the world premiere of their song 'Falling Away From Me' which
Doc 2: October 27, 1999​​ The song was premiered on TV at the Halloween concert held at the South Park Docks.
Doc 3: 10, "Korn's Groovy Pirate Ghost Mystery", Trey Parker, Trey Parker, October 27, 1999 (1999-10-27)  Leonard, Devin (October 27, 2006). "'South Park' creators
Doc 4: The following is a list of episode titles and summary to the series South Park, Comedy Central's longest-running animated series (has been on since 1997) …
Doc 5: The rock band Korn visits South Park during Halloween to solve the mystery of the pirate ghosts that are terrifying the town.