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.
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Question: Sentence: Acid rain may be caused by air pollution. Question: Acid rain may be caused by what?

Answer: air pollution


Question: Sentence: Jaws and pharynx muscles are used to pump water over the gills. Question: What muscles are used to pump water over the gills?

Answer: jaws and pharynx


Question: Sentence: Location is a factor in determining weight but not mass. Question: What is a factor in determining weight but not mass?

Answer:
location