Jacob thought about it for a few seconds. hmmm what could they revert. This was difficult.

"Professor, is it possible to revert a chick back into an egg?" he asked stupidly. "Or we could revert a chicken into a chick." He might hurt them though. It was fun to play with someone elses life though. "oooh chocolate into cocoa beans" he was being silly chocolate was made up of other things. But he wanted chocolate.