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 boy spilled the milk.

SOLUTION: The boy spilled the peace .

PROBLEM: A sugar is for the DNA to convert into energy .

SOLUTION: A sugar is for the body to convert into bread .

PROBLEM: A family room is for watching show .

SOLUTION:
A family visit is for watching television .