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 play cards then you should find a willing opponent.

SOLUTION: If you want to play cards then you should find a playable opponent .

PROBLEM: You would start ice cheese because you 're hungry .

SOLUTION: You would eat cel arine because you 're hungry .

PROBLEM: If you feet are hurt, you might need to go to the doctors.

SOLUTION:
If you feet are hurt , you might need to know to the doctors .