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: The effect of challenging the piano is stronger fingers .

SOLUTION: The emphasis of playing the piano is stronger fingers .

PROBLEM: The process has become astonishing variations in religion .

SOLUTION: The family has performed astonishing variations in religion .

PROBLEM: If you want to have a school then you should lead the friends .

SOLUTION:
If you demand to have a party then you should remember the friends .