So we use this one right here and now we use the second one in this process four. Now the enzyme that catalyzed the process four is the same enzyme that we used here. And so it's no surprise that this same enzyme uses the same substrate molecule. And what it does is just like in this case, it took off this two carbon component from the cellulose and placed it onto the ribose. In this case it once again takes off this two carbon component and places it onto this sugar molecule here. And so we extend this four carbon sugar by two and we form a six carbon sugar we call fructose six phosphate, which is once again a glycolytic intermediate molecule.