Given a sentence, generate a new sentence by performing small changes on the sentence. Here, make sure that the changes are semantically related and syntactically similar to the input. And the generated sentence should have high commonsense plausibility, that is to have reasonable probability of it being true.

Q: Global lead equals global proportion .

A: Global humidity equals global warming .
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Q: You are likely to find a shark around in ocean.

A: You are likely to seem a shark around in ocean .
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Q: A planet is a large spherical composition that orbits a sun .

A:
A planet is a large spherical model that orbits a sun .
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