It seems pretty straight forward to follow the pizza.owl
example (tutorial), but how does one employ the Mandarin
script or code into Protege?
I don't entirely know the answer to this question because I don't
know/understand how the unicode standard supports Mandarin. I know
more about unicode than Mandarin. I suspect that the answer is that
Mandarin is supported.
Protege supports unicode out of the box. In many languages this
means that if you convince your operating system to generate the
characters (which is usually straightforward) from the keyboard then
everything just works. In some cases there is a problem with
rendering but the characters still get encoded properly. At a
guess, I am thinking that a phonetic alphabet would be supported
(does the guess make sense?).
The following pages may have useful information. First there is a
list of code charts for unicode:
For many languages these charts will show you how to encode the
letters of that language into unicode and back. I suspect that the
charts that you want are the CJK ones (?). Second, there is a FAQ
about Chinese and Japanese: