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: Uranus is so faint because it is far away. Question: Why is uranus so faint?
[EX A]: far away

[EX Q]: 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 A]: positive

[EX Q]: Sentence: They are not transcribed happens to structural genes in the presence of tryptophan. Question: What happens to structural genes in the presence of tryptophan?
[EX A]:
they are not transcribed