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 commit suicide then you should seek help.
[EX A]: If you want to commit suicide then you should stop help .

[EX Q]: A snowball is used to defend oneself against an alert .
[EX A]: A chain is used to store oneself against an attack .

[EX Q]: After paying the check in a pile , one usually leaves .
[EX A]:
After paying the check in a pension , one usually leaves .