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: I left a coil out of wax .

SOLUTION: I made a candle out of wax.

PROBLEM: You would invite lunch because you are fine around noon .

SOLUTION: You would eat lunch because you are smart around noon .

PROBLEM: You would pay bill because you have a pocket full of money .

SOLUTION:
You would pay cash because you have a pocket full of money.