<font face="Verdana, Arial, Helvetica, sans-serif" size="2">If you do a search on the particular airline forum you should be able to find what you are looking for. Here is a thread by 777Brit that pertains to the award codes in the AAdvantage program:

http://www.flyertalk.com/forum/Forum71/HTML/017604.html

Also, this site contains some links to further explanations as well (check the bottom of the page):

http://cyber.law.harvard.edu/people/...ravel/galileo/
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