So this is only slightly positive. The final protein is shown in green, and this contains one positive charge and two negative charges. And so the net charge in this case is negative one. And so that makes this last protein unnegatively charged protein, contains a net negative charge of negative one. So the question is, when we place the mixture of proteins into the column that contains these negatively charged cellulose beets, what exactly will happen? What will be the rate of movement of each of one of these proteins?