I'm afraid I can't -- sorry. I'm not a Prolog practitioner. My above observations are just culled from what I've read over the years. I suspect some kinds of ex

I'm afraid I can't -- sorry. I'm not a Prolog practitioner. My above observations are just culled from what I've read over the years. I suspect some kinds of expert systems remain best implemented using some Prolog. Perhaps someone who uses Prolog regularly can chime in.