So we have the green enzyme one, the red enzyme two, and the orange enzyme three. And only enzyme one has a high affinity for glucose. So these are our beads. So we essentially pour our solution into our column. And so initially, at the initial moment we pour our solution, all of these proteins essentially congregate at the top of our column. Now, over time, what happens is because these two proteins have no affinity for the glucose on the beach, they will continue moving down our column as a result of the gravitational pull.