Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Q: Fact: Matter in the solid phase has definite shape

A: Which form can be made into a triangle?
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Q: Fact: the excretory system removes waste from the body

A: The excretory system removes waste from what?
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Q: Fact: tinted lenses reflect ultraviolet rays

A:
Cameras reflect?
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