Well, in some cases, we have an inhibitor that actually resembles the substrate that binds onto the active side. And so what that means is the structure of that inhibitor is similar to the structure of that particular substrate. And because the structure resembles what that means is that inhibitor will bind to that same location where the substrate actually binds to. And so that's exactly why that inhibitor will compete with the substrate for that active site. And we see in competitive inhibition that inhibitor binds onto that same active site that the substrate actually binds to. So in this inhibition, the inhibitor molecule typically resembles that substrate and can therefore bind into the active side of that enzyme.