So serene can be transformed to Pyruvate. And we actually saw before that this was a two step process, and this was catalyzed by Serene Dehydrates. So in the first step, we basically have a water molecule that leaps. So we have the combination of this hydroxide. So the hydroxide group combines with this H plus ion to form a water. And the two electrons in this bond basically form a double bond between this carbon and this carbon.