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.

You are delighted to build a creature around in the forest .
You are likely to chance a creature around in the forest .

Water is composed of hydrogen and oxygen.
ice is composed of hydrogen and oxygen .

You would buy a house because you want a place where you can breath.

You would envy a house because you want a place where you can breath .