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 Input:
If you want to post a message then you should have an email.

Ex Output:
If you want to find a message then you should have an email .


Ex Input:
A teacher can ask whether a student know the answer to a question.

Ex Output:
A body can ask whether a student know the answer to a question .


Ex Input:
If you want to drive a suburban then you should find the keys .

Ex Output:

If you want to drive a goat then you should find the keys .