instruction:
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.
question:
When everyone in the world is slaughtered , it 's a world war .
answer:
When everyone in the world is fighting, it's a world war.


question:
Some ducks swim in the water .
answer:
Some birds remain in the water .


question:
You can orbit a launching crater to send a rocket into space .
answer:

You can use a launching flap to hop a prototype into space .