And once they form that complex, that basically goes on and activates another important molecule we call prothrombin. And this is what we spoke of earlier. So basically, prothrombin is activated. So thrombin. And then it's this thrombin that basically goes on via the common pathway or the final common pathway to ultimately form this meshlike network of fibrin we call blood clots because thrombin activates fibrinogen into fibrin monomers and then these fibrin monomers basically aggregate. They form these clusters that form our blood clots.