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

Q: Some materials have negative heats of solution; the dissolution of one of these solutes in water is called?

A: Some materials have negative heats of solution; the dissolution of one of these solutes in water is called?
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Q: Simple carbohydrates can be classified in terms of chain length.

A: Which carbohydrates can be classified in terms of chain length?
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Q: Phosphatase functions in removing phosphorylated amino acids from proteins.

A:
What functions in removing phosphorylated amino acids from proteins?
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