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: The effect of walking in the town is blue .

SOLUTION: The effect of walking in the rain is blue.

PROBLEM: You would risk a phone call because you want to talk to some on .

SOLUTION: You would bother a blank call because you say to talk to some on .

PROBLEM: A horse handle can ring a garage door .

SOLUTION:
A family hunter can close a garage door .