And so what happens in the next step is to essentially remove that full positive charge from the nitrogen. We have a rearrangement taking place in which this entire component is actually kicked off. So what happens is so if this is carbon 123-4567, we have this sigma bond between the H and the oxygen basically breaks. That kicks off this H plus ion, and that forms a pi bond between this oxygen and this carbon. In the process, we break the sigma bond between carbon three and carbon four. And that sigma bond is used to form a pi bond between carbon two and carbon three.