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: A good heart can increase your chances of a complete career .

SOLUTION: A good education can increase your chances of a good career.

PROBLEM: You are likely to forget a decade in a forest .

SOLUTION: You are proud to find a leaf in a coffee .

PROBLEM: The fabric of space-time is distorted around a spinning black hole.

SOLUTION:
The fabric of space - ability is distorted around a spinning black hole .