And so it will travel the fastest down our column. And so it will end up all the way at the bottom first. And so this is protein three. Now, the slightly positive protein will be attracted to those beads, but it will also be pulled down by the force of gravity. And so, because the traction isn't that great, it will end up somewhere in the middle, below protein One, which will be at the top, because it has that very strong electric attraction to those beads. And so, over time, when this protein Three ends up at the bottom, it will end up at the bottom first.