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 did the voice of hal in 2001?" whose answer is Douglas Rain.
Each document should contain about 30 words, and these documents should contain useful information.

Query: voice actor HAL 2001 film
Useful Output:

Doc 1: Another part is the even, dispassioned and precise voice of HAL delivered by actor Douglas Rain. Mr. Rain passed away this week at the age of 90
Doc 2: Douglas Rain, the actor best known for voicing the homicidal HAL 9000 computer in Stanley Kubrick's film 2001: A Space Odyssey, has died aged 90
Doc 3: Actor of stage and screen Douglas Rain died Sunday morning from natural causes in St. Mary's Memorial Hospital outside Stratford, Ontario. He was 90.
Doc 4: The list of the greatest computers in the history of movies is pretty much HAL 9000 — the troubled, deadly artificial intelligence in 2001:
Doc 5: To play HAL, Kubrick settled on Martin Balsam, who had won the best supporting actor Oscar for “A Thousand Clowns.” Perhaps there was a