Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

Q: Fact: pie charts are circle graphs. 
Question: Which is a circle graph?

A: pie chart.
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Q: Fact: astronauts require dehydrated food for extended flights. 
Question: astronauts require what food for extended flights?

A: dehydrated.
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Q: Fact: a black hole is formed by a smaller diameter star. 
Question: a black hole is formed by a what diameter star?

A:
small.
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