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.

[EX Q]: pi can climb a hole .
[EX A]: pie can climb a park .

[EX Q]: To raise an electric g rod , you knock a pencil into hole .
[EX A]: To give an electric pencil sharpener , you hit a pencil into crystal .

[EX Q]: You are likely to face a policeman in a downtown area .
[EX A]:
You are likely to find a mailbox in a downtown area.