the lookup table has just the two columns mentioned in the rule: "Level" and "Class", where the level is the distance from root (e.g. \TREE\org\company would be at level 3) and the class is the object class to be created:
<col-def name="Level" type="numeric"/>
<col-def name="Class" type="nocase"/>
I am not sure how special characters will be escaped in slash notation when xpath is operating on them as a variable value and if the translate function would see an escaped forward slash ("\/") as two characters or just as the "/" it's meant to be. If someone's silly enough to place animals inside containers he has to try it out, I guess...