So we have a single glucose phosphate, is transformed into ribosphy phosphate, and we generate the two NADPH molecules. And this is essentially the oxidative phase of the pentose phosphate pathway. Next we undergo the non oxidative phase and we break down the ribosphy phosphate into fructose six phosphate and glyceroaldehyde three phosphate. And actually the correct stoichiometric coefficient for this, we have two and we have one glyceroaldehyde for three of these molecules that are actually formed or that are actually used. So we need to actually use three ribose five phosphates to produce two fructose six phosphates and a single glyceroaldehyde three phosphate. So that's the second step.