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]: You would exit your car because you came to a red light .
[EX A]: You would alert your car because you came to a red light .

[EX Q]: An x is used for communicating through the postal system .
[EX A]: An envelope is used for reading through the postal system .

[EX Q]: Paying category is for avoiding credit card bills .
[EX A]:
Paying ebook is for avoiding inc ip bills .