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 are likely to find a float around in a plate .

SOLUTION: You are likely to find a knife right in a plate .

PROBLEM: The brother got his rib cut off by a fan .

SOLUTION: The journalist got his ticket cut off by a fan .

PROBLEM: You would prepare for a search because you want elect an informed general .

SOLUTION:
You would prepare for a competition because you want make an informed choice .