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Sigma KEE - PortCity
KB Term: 

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港口城市
A City near a WaterArea.
Relationships      
Parents 城市 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.
Children 集装箱港口
 深水港
 河港RiverPort is the subclass of PortCity whose instances are port cities Adjacent to a navigable River.
 海港SeaPort is the subclass of PortCity whose instances are port cities on or closely linked to a Sea or Ocean.


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