In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

Q: Question: The Earth spins around and around, and in order to finish one cycle of this spinning? Answer: a seventh of a week must pass.

A: a Rotation of the Earth on Earth 's axis takes 1 day
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Q: Question: Which is an electrical energy conductor? Answer: cobalt.

A: metal is an electrical energy conductor
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Q: Question: Some people put metal tags on their dog's collars, because in darkness, these collars can? Answer: reflect light.

A:
shiny things reflect light
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