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: When everyone in the world is slaughtered , it 's a world war .

SOLUTION: When everyone in the world is fighting, it's a world war.

PROBLEM: You are likely to find a glitch in a logic or other service . ].

SOLUTION: You are likely to command a site in a nursery or other building . ].

PROBLEM: You are likely to produce a trash in the street .

SOLUTION:
You are likely to break a photo in the aftermath .