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 would learn about science because science makes sense of the matter .

SOLUTION: You would learn about science because science makes sense of the thing .

PROBLEM: You are likely to find a building in the know .

SOLUTION: You are likely to find a building in the back .

PROBLEM: If you qualify to test the car then you should need the tires .

SOLUTION:
If you want to test the car then you should kick the tires.