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 am firing on a computer keyboard .

SOLUTION: I am bang on a computer keyboard .

PROBLEM: You can embarrass a friend to upset a secret .

SOLUTION: You can trust a friend to forge a romance .

PROBLEM: You would improve at a joke because your boss told it .

SOLUTION:
You would spike at a joke because your boss told it .