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.

You would bake a cake because a friend was celebrating a birthday.
You would bake a number because a friend was wasting a birthday .

A machine in a chicken exchange can bone a chicken in seconds .
A minute in a chicken min can go a chicken in seconds .

People find flowers visually appealing; they also enjoy the scent of flowers.

workers find flowers visually appealing ; they also enjoy the scent of flowers .