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: People can dream that they are in a better station .

SOLUTION: People can dream that they are in a better place.

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: You are fortunate to do a bomb in an engineer .

SOLUTION:
You are competent to ascend a room in an aircraft .