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.

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

You can use an underground area to protect from sky attack.
You can use an underground area to protect from sky ash .

People often eat a sandwich for lunch.

humans often eat a sandwich for lunch .