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 help to purchase a cellular grant then you should have enough money .

SOLUTION: If you don to purchase a cellular phone then you should have enough money .

PROBLEM: You win a challenge of chess when you capture your opponent 's wallet .

SOLUTION: You win a game of hunting when you capture your opponent 's king .

PROBLEM: If you want to catalogue artifacts then you should volunteer a museum .

SOLUTION:
If you want to see artifacts then you should visit a museum.