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: You can jump for your flight at a flight terminal .

SOLUTION: You can wait for your flight at a plane terminal .

PROBLEM: You would engage someone because you want discourage a tone of fear .

SOLUTION: You would punish someone because you want discourage a type of behavior.

PROBLEM: If you want to wait in line then you should go to the market .

SOLUTION:
If you want to wait in line then you should go to the number .