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: Plate movements causes continents to drift closer to the poles or the equator. Question: What causes continents to drift closer to the poles or the equator?
[EX A]: plate movements

[EX 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?
[EX A]: cellulose

[EX Q]: Sentence: Chemistry is based on the modern atomic theory, which states that all matter is composed of atoms. Question: What branch of science is based on the modern atomic theory, which states that all matter is composed of atoms?
[EX A]:
chemistry