TASK DEFINITION: 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.
PROBLEM: If you want to change your relationship then you should get plastic surgery .

SOLUTION: If you want to change your appearance then you should get plastic surgery.

PROBLEM: Someone 's aunt Must play the lawyer .

SOLUTION: Someone 's aunt z play the queen .

PROBLEM: If you want to swim then you should jump in a LOT of water .

SOLUTION:
If you request to swim then you should seek in a pool of water .