I have to do a coursework. Basicaly, I am required to build an expert system in CLIPS that includes about 50 -60 items, where items can be rules, facts etc. I am free to pick the domain for my system. The problem is I don't have any idea about the topic and I am a novice in this programming language. So if you have any idea or know good web sites to learn quickly rudiments of CLIPS, let me know.

You can start with CLIPS itself and its extensive manuals. Look for simple applications on the web if you need examples.

I like the monkeys and bananas example :

http://www.ghg.net/clips/download/executables/examples/mab.clp

@Yvanhoe
i could not read your file, even when i use clips it seems encrypted...

Then go there :

http://www.ghg.net/clips/download/executables/examples/

right-click, and Save As on "mab.clp"

It isn't encrypted, it is a text file. It begins withe the following comments and instructions :

;;;======================================================
;;; Monkees and Bananas Sample Problem
;;;
;;; This is an extended version of a
;;; rather common AI planning problem.
;;; The point is for the monkee to find
;;; and eat some bananas.
;;;
;;; CLIPS Version 6.0 Example
;;;
;;; To execute, merely load, reset and run.
;;;======================================================