And so in the second step we have the deasylation step. So this acid group is removed from that oxygen. The age from the water molecule is given to that oxygen on the Serene. And so ultimately we regenerate that enzyme and then we also form that hydrolyzed final product in which we now have a peptide bond that has been broken. And so this is the very quick step that takes place that accounts for this relatively steep slope. But as we reach the steady state conditions, as the intermediate concentration basically does not change what begins to happen is this begins to level off.