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.

[EX Q]: 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?
[EX A]: hydroxl groups

[EX Q]: 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?
[EX A]: the composition of the atmosphere

[EX Q]: Sentence: Sunspots occur in a 11 year cycle. Question: What is the year cycle that sunspots occur?
[EX A]:
11