In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

Q: Question: With a ruler I can measure? Answer: a phone.

A: a ruler is used for measuring the length of an object
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Q: Question: Convection is caused by uneven what? Answer: warmness distribution.

A: uneven heating causes convection
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Q: Question: Which of the following is the most replaceable? Answer: the energy captured by a windmill.

A:
a renewable resource can be replaced
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