Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
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Question: statement: a skateboard requires level surfaces, question: What does a skateboard require?

Answer: level surfaces

Question: statement: Caves can be used to avoid leopards., question: Caves can be used to avoid what?

Answer: leopards

Question: statement: Astronomers study the stars and galaxies, question: Who study the stars and galaxies?

Answer:
Astronomers