Now let's move on to C. So now these two have been broken. And now in step C, we run a second round of gel electrophoresis on that same sheet under the same conditions. But now we run it in a perpendicular direction. Instead of running it this way, we run it going up. And that's exactly why we have these two axes on the following graph. So the x axis describes the horizontal electrophoresis, the first round of electrophoresis.