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: "Which movie came out first Go Further or Pumping Iron ?" whose answer is Pumping Iron.
Each document should contain about 30 words, and these documents should contain useful information.

Query: release date of Pumping Iron
Useful Output:

Doc 1: Pumping Iron is a 1977 documentary film that explores the world of professional bodybuilding. Featuring Arnold Schwarzenegger and Lou Ferrigno,
Doc 2: The 1977 film documents a time before gym culture, when Schwarzenegger was just little-known body builder with a sexual desire for 'The Pump.'.
Doc 3: This is probably the best there is available now Battle For Gold 1988 Mr Olympia - it's a 1hour6min documentary leading up to the show, it's
Doc 4: Pumping Iron (1977) Pumping Iron is a 1977 documentary film about the run-up to the 1975 Mr. Olympia bodybuilding competition.
Doc 5: 'Pumping Iron' came out in 1977, at a time when body building was still genuinely considered freakish. The world had not yet been