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.
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Question: An opter can hang its eyes .

Answer: An one can poke its eyes .


Question: A heart is for pumping blood through the chamber .

Answer: A A is for ensuring blood through the water .


Question: You are likely to find a cat in a pound.

Answer:
You are likely to find a pear in a pound .