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  City

 Sigma KEE - City

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City
A LandArea of relatively small size, inhabited by a community of people, and having some sort of political structure. Note that this class includes both large cities and small settlements like towns, villages, hamlets, etc.
Relationships      
Parents GeopoliticalArea Any GeographicArea which is associated with some sort of political structure. This class includes LandArea, Cities, districts of cities, counties, etc. Note that the identity of a GeopoliticalArea may remain constant after a change in borders.
  LandArea An area which is predominantly solid ground, e.g. a Nation, a mountain, a desert, etc. Note that a LandArea may contain some relatively small WaterAreas. For example, Australia is a LandArea even though it contains various rivers and lakes.
Children 美國城市The class of cities that are in the UnitedStates.
 歐洲城市The class of cities that are in Europe.
 港口城市A City near a WaterArea.


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