So once again, when blood vessels experience trauma and rupture, our body uses over a dozen different enzymes and proteins to create a cascade of events that ultimately forms blood clots that are used to seal off that particular cut in that blood vessel. And again, we have these blue molecules, these are the zymogen enzymes. Then we have the red ones, those are the active form of that zymogen. And the purple molecules, these molecules are basically proteins. They're not enzymes. They're proteins involved in actually assisting this cascade of events.