22. The system as recited in claim 21 , the operations further comprising, prior to the generating, sorting the plurality of names obtained from the digital work into a sorted list so that fuller names containing more information are toward a beginning of the sorted list.
22. The system as recited in claim 21 , the operations further comprising, prior to the generating, sorting the plurality of names obtained from the digital work into a sorted list so that fuller names containing more information are toward a beginning of the sorted list. 23. The system as recited in claim 22 , wherein the operation of selecting the first name and the second name to generate the first name set and the second name set further comprises selecting a fuller name from the beginning of the sorted list.