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.
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Question: Sentence: Iridescent green beetles, known as jewel beetles, change color because of the light-reflecting properties of the cells that make up this? Question: Iridescent green beetles, known as jewel beetles, change color because of the light-reflecting properties of the cells that make up this?

Answer: their external skeleton


Question: Sentence: It would help conserve water to turn off water while brushing teeth. Question: Which would help conserve water?

Answer: Turn off water while brushing teeth


Question: Sentence: Ion drives have low thrust but high efficiency. Question: Ion drives have low thrust but high what?

Answer:
efficiency