This expert system was developed by two undergraduate students at UCI.
It diagnoses illnesses of tropical fish.

Uncompact this and store the folder "Tung & kenneth, project" in the
SAME FOLDER as the FOCL-1-2-3 application.  

For one good example 
1. Load the knowledge-base "Tung & kenneth, projec: fish-diagnosis.fasl"

2. Run on a New Example 
Reply as
Flounder
Body Problem (and wait a little while)
Select "Open Sores" and the "Return Selection"
No (Fighting)
Muscle-tissue-exposed
Yes (Worms)
Yes (Forked Tails)