Why are these called 5 way binding posts? I count four!

I don't know who EBM is, this is my first time ever on here. Stumbled on this looking for other info. But I'll try to upload a picture of the way I load binding posts.

It's there, you only have to click to preview the image. I know I did this wrong. This is new and over my head. The leads are also exaggerated here to illustrate what's going on.