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 take a course then you should go to school.

SOLUTION: If you want to take a course then you should recommend to school .

PROBLEM: God speaks to us using words and concepts that we can understand.

SOLUTION: Daniel speaks to us using words and concepts that we can summarize .

PROBLEM: The game of fishing a head is entertainment .

SOLUTION:
The effect of viewing a video is entertainment.