In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Q: Sentence: Leaves changing color on trees of these is the best sign that the fall season has begun. Question: Which of these is the BEST sign that the fall season has begun?

A: Leaves changing color on trees
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Q: Sentence: Primary pollutants enter the air directly. Question: What type of pollutants enter the air directly?

A: primary
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Q: Sentence: The endocrine system produces hormones to regulate growth, development, and reproduction. Question: Which human organ system produces hormones to regulate growth, development, and reproduction?

A:
endocrine
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