The blue molecules are the zymogen form of the enzyme and the red molecules are the active form of that enzyme. So once we have the rupture, we have the exposure of the tissue factor. And basically, once the TF is exposed to the blood plasma, we have this molecule that is activated. So Zymogen Seven is activated into its active form. And then this enzyme number Seven, basically binds onto the tissue factor to form an active complex, which then goes on and basically activates Zymogen Ten into its active form. So this is basically the extrinsic pathway.