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: 10 million years long can a large star be on the main sequence stage. Question: How long can a large star be on the main sequence stage?

A: 10 million years
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Q: Sentence: Humans create different breeds of organisms using artificial selection. Question: Humans create different breeds of organisms using what kind of selection?

A: artificial selection
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Q: Sentence: In living systems, diffusion of substances into and out of cells is mediated by the plasma membrane. Question: In living systems, diffusion of substances into and out of cells is mediated by the what?

A:
plasma membrane
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