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: "On what date did the astronaut who influenced the Apogee imprint set foot on the moon?" whose answer is July 21, 1969.
Each document should contain about 30 words, and these documents should contain useful information.

Query: apollo astronauts who set foot on the moon
Useful Output:

Doc 1: Armstrong was the first person to set foot on the Moon, and his remark, “That's one small step for man, one giant leap for mankind,” is infamous
Doc 2: Armstrong served as the commander of Apollo 11 and was the first man on Earth to step foot on the moon, uttering his famous phrase, “That's one
Doc 3: Neil Armstrong and Buzz Aldrin spent more than two hours outside their spacecraft on the Moon. They studied the surface.
Doc 4: Apollo astronauts Neil Armstrong, Edwin "Buzz" Aldrin, and Michael Collins discuss their historic landing on the moon and the future of
Doc 5: In January 1969, astronauts Neil Armstrong, Mike Collins and Buzz Aldrin were assigned to Apollo 11, which was looking to be a likely contender