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.

Example Input: You can equip a backdoor to stay on a door .
Example Output: You can use a shotgun to knock on a shop .

Example Input: You are likely to find a runway in an airport.
Example Output: You are likely to learn a runway in an airport .

Example Input: A room can have no purpose.
Example Output:
A self can have no purpose .