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 Input:
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 Output:
hydroxl groups


Ex Input:
Sentence: Is the heat of reaction for an endothermic reaction is positive. Question: Is the heat of reaction positive or negative for an endothermic reaction?

Ex Output:
positive


Ex Input:
Sentence: Precipitation commonly occur(s) along a cold front. Question: Which weather condition commonly occurs along a cold front?

Ex Output:

precipitation