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: The sun rises in the east.

SOLUTION: The tension rises in the periphery .

PROBLEM: You would learn about science because science makes sense of the matter .

SOLUTION: You would learn about science because science makes sense of the thing .

PROBLEM: The implication of going fishing is that your mind and body become very relaxed .

SOLUTION:
The guarantee of going fishing is that your mind and body become very relaxed .