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: Wind falls from the sky .

SOLUTION: cat falls from the yacht .

PROBLEM: You are sad to find an ear in a Police rat 's bedroom .

SOLUTION: You are likely to find an ear in a serial killer's bedroom.

PROBLEM: You are likely to find an island in the middle of the pond .

SOLUTION:
You are afraid to select an island in the middle of the fall .