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.

Computers can emulate audio .
Computers can decrypt audio .

You drink coffee from a cup.
You expect coffee from a CEO .

If you want to import art then you should go to an art manufacturer .

If you fear to post art then you should go to an Artist gallery .