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.

If you want to cook dinner then you should spoil the food .
If you want to cook dinner then you should heat the food.

A swimming pool is specialized for reflecting the sky .
A format user is used for returning the zip .

You would modify a contract because you want results .

You would sign a contract because you consider results .