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: Diabetes is caused by a reduction of a hormone that helps cells absorb sugar from the blood. 
Question: What is caused by a reduction of a hormone that helps cells absorb sugar from the blood?

A: diabetes.
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Q: Fact: birds fly using muscles in the chest. 
Question: What do birds use to fly?

A: Muscles in the chest.
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Q: Fact: a circle graph can be used to display decimal fractions. 
Question: what can a circle graph be used to display?

A:
decimal fractions.
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