Question regarding NSDictionary and saving a 'tree structure'

FROM : nutrition1
DATE : Wed Mar 26 17:07:41 2008

Dear All,

I tried to use a NSDictionary to save data from my application to a 
plist. It includes a key, and for each key an object (in my case a 
NSArray), works fine !!!
Now i tried to go one step further for what I need to accomplish, 
instead of saving 2 levels (the key and the corresponding object) I 
want to save 3 levels (Key, object and another object linked to the 
first object).
Somehow this doesn't seem to be possible by using NSDictionary, which 
only allows 2 levels.

Anyone, who has a workaround for this, would be highly appreciated !

Kind regards
Dirk Hoffmann