Matlab Forward Chaining Example?

Hello. I have an assignment for school to implement a game using forward chaining. I have searched this site, StackOverflow, google, bing, etc and haven't been able to find a single example of this process. Would anyone happen to know of a place where I could find one or can anyone provide a link to one? I just need something to look at so that I can get an idea of what I'm supposed to be doing and then I can implement it using my own rules/logic.

Thanks!