10. The system of claim 9 , 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.
12. The system of claim 10 , wherein determining a relationship between the geographic entity name and the different geographic entity name comprises determining that a first position for the geographic entity name in the tree structure and a second position for the different geographic entity name in the tree structure are at a same level in the tree structure.