So let's take a look at the following diagram that describes the binding process between monoclonal antibodies and antigens. So we have 123456 of these specific identical antigens and we have one, two, three different epitopes on each one of these antigens. We have the orange one, we have the brown one and we have the pink one. Now this is our collection of three identical monoclonal antibodies which were built by the same type of plasma cell. And so what that means is they will all bind to the same exact epitope on that antigen. So let's suppose the orange epitope.