And so in the final step, what we can actually do is we can take three test tubes. And as we see this protein reaching the bottom, we can essentially open up this open up this knob or turn the knob, and this basically this protein enters our test tube number one. And then we can wait for this to get to the bottom. We open up our knob, and so it enters test tube number two. And then when this reaches the bottom, once again, we turn a knob, open up this hole, and so this will elude into this test tube number three. And so now we have these three different separate test tubes that contain those isolated proteins, protein number one, protein number two, and protein number three.