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: A bow can be threaded in a gun .

SOLUTION: A parachute can be packaged in a gun .

PROBLEM: You would ride a bike because you want some fresh air.

SOLUTION: You would load a bike because you wore some bulky case .

PROBLEM: You are skeptical to find a pocket sized notebook in a business products store .

SOLUTION:
You are amazing to find a pocket sized nickel in a paper products store .