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: You would roam outside for an evening because you want to see the turtles .

SOLUTION: You would scream outside for an evening because you want to see the stars .

PROBLEM: A c may have a larg or narrow casing .

SOLUTION: A T may have a wide or delicate casing .

PROBLEM: You are liable to find a joke in a year .

SOLUTION:
You are likely to log a lake in a forest .