Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: You call elements that contain only atoms of one type of element native elements.

Answer: What do you call elements that contain only atoms of one type of element?


Question: Gardasil is the vaccine to prevent infection of hpv.

Answer: What is the vaccine to prevent infection of hpv?


Question: Cloning is the only commercial way of reproducing plants such as orchids.

Answer:
What is the only commercial way of reproducing plants such as orchids?