And the purple molecules, these molecules are basically proteins. They're not enzymes. They're proteins involved in actually assisting this cascade of events. So we have the extrinsic and intrinsic pathway, which basically work together to amplify the number of protein or enzyme x that we produce, which ultimately then follows the final common pathway. So the extrinsic and intrinsic pathways basically converge into the final common pathway that ultimately forms and activates Thrombin, which then goes on to activate Fibrinogen into fibrin. So blood clots are formed via series of zymogen activations.