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Sigma KEE - InlandWaterSystem
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inland water system
An instance of InlandWaterSystem comprises two or more lakes or rivers, canals, or other waterways that are interconnected.
Relationships      
Parents collection Collections have members like Classes, but, unlike Classes, they have a position in space-time and members can be added and subtracted without thereby changing the identity of the Collection. Some examples are toolkits, repeated actions, football teams, and flocks of sheep.
  water area A body which is made up predominantly of water, e.g. rivers, lakes, oceans, etc.


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