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 take a phone a because you want to learn .

SOLUTION: You would take a phone call because you want to learn.

PROBLEM: An effect can leave a hole .

SOLUTION: An owl can stop a dart .

PROBLEM: People can relax by sitting and watching the market .

SOLUTION:
People can relax by rolling and talking the ocean .