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: People can use the internet to compare prices on travel goals .

SOLUTION: People can catch the internet to compare prices on travel tickets .

PROBLEM: If you want to get a trade then you should search for customers .

SOLUTION: If you want to get a PR then you should search for customers .

PROBLEM: If you want to get a good design then you should perform a translation .

SOLUTION:
If you want to get a good grade then you should read a lot.