In the process, we essentially oxidize the isocitrate. So if this is reduced, then this is oxidized, and we form the alpha key to gluterate. And also in the process, this entire component, this carbon dioxide region, is basically released. And this H atom, or the hion attached to this oxygen, is basically released as well. And so we formed the carbonyl group between this carbon shown here. And so the alpha ketoglutrate is now basically ready to undergo the next step.