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: Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only contract. Question: Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only do what?

A: contract
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Q: Sentence: The strong affinity of concentrated sulfuric acid for water makes it a good agent for dehydrating. Question: The strong affinity of concentrated sulfuric acid for water makes it a good agent of what?

A: dehydrating
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Q: Sentence: The fact that water in a reservoir is elevated above the ground means that it has potential kind of energy. Question: The fact that water in a reservoir is elevated above the ground means that it has what kind of energy?

A:
potential
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