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: "Gummo is the soundtrack album to the film of the same name, and contains songs that were recorded specifically for the film, or were featured in the film, the soundtrack is most notably an abridged version of Burzum, a music project that began in what year, by the Norwegian musician and writer Varg Vikernes?" whose answer is 1991.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Burzum start year
Useful Output:

Doc 1: Kristian Vikernes founded the one-man music project called Burzum in the early 1990s, which soon became a fixture of Norway's black metal scene.
Doc 2: Burzum was a Norwegian music project founded by Varg Vikernes in 1991. Although Burzum never played live performances, it became a part of
Doc 3: 1992 - Burzum​​ Let's begin with the self-titled debut. Back in 1992, Varg's own solo project Burzum was well under way, and so came this debut,
Doc 4: FROM: Bergen, Norway; BORN: 11 February 1973; GENRE: Death Metal/Black Metal
Doc 5: Burzum · Bergen, Norway · February 11, 1973 · Death Metal/Black Metal · Similar Artists · Africa, Middle East, and India · Asia Pacific · Europe · Latin America and