And so, basically, the kid that makes it to the end of the pathway is the kid that is not attracted to those chocolate chip cookies. And so, in the same analogous way, because this negatively charged protein isn't attracted to the negatively charged beads, it will make it down to that pathway the fastest. It will be collected at the bottom the fastest as compared to the other proteins. So, to see exactly how we can basically carry out this experiment with these three proteins. Let's take a look at the following diagram. So we have diagram A through E, and let's begin with diagram A.