And we also remove this H here to basically form a pine bond between the oxygen and our carbon. And this is the final molecule, the four carbon oxalo acetate. So, in the process of regenerating our oxalo acetate in step six, seven and eight, we also actually produce the high energy electron carrying molecules. We produce a single fadh two in step six and a single NADH in step eight. And we also use a water molecule in step number seven. Now, this step, this cycle takes place twice because we have two acetyl coenzyme A molecules coming from a single glucose.