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: An eye can be of many different colours.

SOLUTION: An alphabet can be of many opposing colours .

PROBLEM: The mailman served the table .

SOLUTION: The worker brought the home .

PROBLEM: You would have a heart attack because you want to reach .

SOLUTION:
You would have a heart attack because you want to die.