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 launch an art gallery then you should enjoy the art .

SOLUTION: If you propose to shoot an art gallery then you should enjoy the approach .

PROBLEM: You are interested to find a work of art in an art museum .

SOLUTION: You are inclined to find a work of art in an art museum .

PROBLEM: Stars have fun when they p .

SOLUTION:
students have fun when they dance .