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: Traveling requires image maps., question: Traveling requires what?

Answer: image maps


Question: statement: Some methods of birth control can break or be used incorrectly., question: What can break or be used incorrectly?

Answer: birth control


Question: statement: A chain wrapped around a wheel is used for lifting blocks., question: What is a chain wrapped around a wheel used for?

Answer:
lifting blocks