23. The computer-readable medium of claim 22 , wherein the geographic data set is a tree structure wherein different positions in the tree structure that share a same level correspond to different geographic locations that share a same geographic region type.
23. The computer-readable medium of claim 22 , wherein the geographic data set is a tree structure wherein different positions in the tree structure that share a same level correspond to different geographic locations that share a same geographic region type. 24. The computer-readable medium of claim 23 , wherein determining a relationship between the first geographic entity name and the second geographic entity name comprises determining that a first position for the first geographic entity name in the tree structure and a second position for the second geographic entity name in the tree structure share a parent in the tree structure.