Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: Ice masses, acquifers, and the deep ocean are examples of water reservoirs.

A: Ice masses, acquifers, and the deep ocean are examples of water what?
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Q: Phototaxis is the term for movement toward light.

A: What is the term for movement toward light?
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Q: Some plants have stolons, or stems, that run along the ground and are commonly called runners.

A:
Some plants have stolons, or stems, that run along the ground and are commonly called what?
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