I bought a copy at a mall in Nashville TN some 30+ years ago. I was
working at an airline at the time and was interested in the crew scheduling
problem, as well as all things AI related. I never got too far using
Prolog on that particular problem. I found the disks and manual like 13
years ago and made a short video and put it on youtube. Turbo Prolog was
pretty speedy even on old hardware.
https://www.youtube.com/watch?v=svcxu0xiH34
Win