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: If you want to maintain good willpower then you should eat little meat .

SOLUTION: If you want to maintain good health then you should eat little meat.

PROBLEM: A mill is a bit or mechanism that employs grain .

SOLUTION: A powder is a device or filter that loses grain .

PROBLEM: If you want to take final exams then you should go to parliament .

SOLUTION:
If you want to take final exams then you should go to Form .