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: The composition of the atmosphere has changed over the last 200 years primarily due to human activity. Question: Which of the following has changed over the last 200 years primarily due to human activity?

Answer: the composition of the atmosphere


Question: Sentence: The chains in cellulose stack in parallel rows held together by hydrogen bonds between hydroxl groups groups. Question: The chains in cellulose stack in parallel rows held together by hydrogen bonds between which groups?

Answer: hydroxl groups


Question: Sentence: Trees need the vascular to transport nutrients. Question: What system do trees need to transport nutrients?

Answer:
vascular