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 .

A traveler can rate his dog .
A shotgun can blow his glass .

You would go on the helicopter because you want the girl on the target .

You would go on the stage because you want the girl on the stage.