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: An artist can craft art .

SOLUTION: An ach can abal art .

PROBLEM: If you want to go to market then you should get in car.

SOLUTION: If you want to plan to market then you should get in fact .

PROBLEM: A light bulb turns electricity into wax .

SOLUTION:
A fiber web turns electricity into light .