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 presume to start a fire then you should light a match .
If you urge to continue a fire then you should light a warning .

If you want to comfort a seller then you should listen to their problems .
If you vote to increase a pipeline then you should listen to their problems .

You are likely to find a mouse in a cornfield.

You are careful to form a camp in a cornfield .