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 is the first person to go to the moon?" whose answer is Neil Alden Armstrong.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who was the first person to walk on the moon
Useful Output:

Doc 1: The first person who walk on the moon was Neil Armstrong.He took his historic steps on July 20, 1969, during the Apollo mission.
Doc 2: Astronaut Neil Armstrong was the first person on the moon.  The American flag is planted after Armstrong and Aldrin make history walking on the
Doc 3: It marked the first time that humans landed on the Moon. Commander Neil Armstrong and Lunar Module Pilot Buzz Aldrin landed the Apollo Lunar Module Eagle on
Doc 4: These studies suggest Neil Armstrong was the first astronaut to walk on the moon.
Doc 5: The first person to walk on the moon was Neil Armstrong during the Apollo 11 mission in 1969. The last person to walk on the moon was Eugene