And the way that we transform these normal spleen cells, healthy spleen cells, into cancer cells is by mixing them with the multiple myeloma cancer cells. So if we mix these orange cancer cells with these normal purple cancer cells, the two types of plasma cells will essentially fuse in a solution of polyethylene glycol. And once they fuse, we essentially transform these healthy plasma cells in purple into these cancerous plasma cells known as hybridoma cells. So hybridoma cells are hybrid cells between these healthy plasma cells and these cancerous plasma cells. So now, in the beaker, some of these cells are basically cancer cells that are plasma cells that produce the antibody that we want to study. And so in the next step, in step three, we want to take these hyperdoma cells and we want to screen them many times with different types of essays to basically determine and isolate those plasma cells that produce that particular type of antibody that we want to study.