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]: If you want to post a message then you should have an email.
[EX A]: If you want to find a message then you should have an email .

[EX Q]: You are likely to reject a return to stay in a hotel .
[EX A]: You are likely to announce a place to stay in a hotel .

[EX Q]: You are likely to deliver a command in a baseball game .
[EX A]:
You are cool to replace a ball in a baseball game .