And what that ultimately tries to achieve is to attach a hydroxyl group onto this carbon here. So going from here to here, we break that pi bond and we also attach that hydroxyl group, as shown here. So this gives us an alcohol group in the next step, which is once again, an oxidation step. Just like this step, we essentially want to extract electrons. In the process, we want to transform this hydroxyl group into a carbonyl group. And once we form that carbonyl group, we basically form the ketone.