So we have the protein, this protein number one. We have this protein number two. And we have here this protein number three. 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.