Look, we have both of these ends contain the c O negatively charged group, and then we have the methylene group in between. And so this is a completely symmetrical molecule. And that's why we no longer actually use these color coded atoms. Now, once we form the succinate, the next reaction, step six, or actually, I should generalize once we formed the succinate molecule, notice that we lost the carbon dioxide, two of them. And so we went from a six carbon molecule to a four carbon molecule. And now, in step six, seven, and eight, the entire point is truth, to transform this four carbon succinate into a four carbon oxalo acetate so that the citric acid cycle can basically begin all over again.