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 an altar in a church.

SOLUTION: You are close to find an altar in a mirror .

PROBLEM: A fitting room is where you propose to try on new technologies .

SOLUTION: A fitting room is where you go to move amongst new clothes .

PROBLEM: You are willing to find a shark in warm water .

SOLUTION:
You are sorry to find a shark in warm water .