And finally, to form the final product to regenerate our oxalo acetate, we have an NAD plus that is reduced. So it takes our H, which basically is this H here. Once we take that H, we form our NADH. 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.