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 drink coffee from a cup.

SOLUTION: You expect coffee from a CEO .

PROBLEM: Computers can emulate audio .

SOLUTION: Computers can decrypt audio .

PROBLEM: They can listen to music till bedtime.

SOLUTION:
They can listen to music because bedtime .