I guess this is a Joomla/Mambo newbie question.
Ok, here is the story, every constant that starts with _UE_ is a language string that is defined in the language file (of Joomla, a component, a module, etc).
For the specific question if you are operating a single language site its ok to just over-write this string with whatever you like. If however you are supporting a multi-language site (switchable via mamblefish) then you should edit the language file(s) appropriately.
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