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.

[Q]: Sentence: Corals build hard exoskeletons that grow to become coral reefs. Question: Corals build hard exoskeletons that grow to become what?
[A]: coral reefs


[Q]: Sentence: Certain anaerobic parabasalid species exist in the digestive tracts of termites and wood-eating cockroaches, where they contribute an essential step in the digestion of cellulose. Question: Certain anaerobic parabasalid species exist in the digestive tracts of termites and wood-eating cockroaches, where they contribute an essential step in the digestion of this?
[A]: cellulose


[Q]: Sentence: Yeast fermentation causes holes in bread. Question: What causes holes in bread?
[A]:
yeast fermentation