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.

Cats and dogs provoke each other .
Cats and dogs call each other .

To open a locked door you usually need to have a buddy .
To open a locked door you usually need to have a key.

You would commit suicide because you want to strengthen your self .

You would commit suicide because you want to kill your self.