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 can use a piano to reverse chess .

SOLUTION: You can use a pin to launch chess .

PROBLEM: You are likely to confuse a cat in a cafe .

SOLUTION: You are equal to seat a sister in a chair .

PROBLEM: If you understand to answer questions then you should research answers .

SOLUTION:
If you hurt to answer questions then you should research answers .