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.

If you want to commit suicide then you should seek help.
If you want to commit suicide then you should stop help .

Thirst would make you want to hang out at the square .
Thirst would make you want to hang out at the dance .

You are likely to find a CD in computer science .

You are likely to type a system in computer science .