So, if we sum up all these three reactions, four reactions, I should say this is basically what we get. So, even though this net equation might seem simple, it actually consists of four different steps. In three steps, we form that acetocoenzyme A. But the final step is needed to not only regenerate that Lipomi coenzyme, but also generate that NADH as well as that H ion. So this is a step that by which we essentially prepare that pyruvate molecule. We abstract not only electrons, but the Cetil group from the pyruvate, attach it onto the coenzyme A, and that activates this acetyl group, makes it very reactive.