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Relation: subclass

StationaryArtifact164A StationaryArtifact is an Artifact that has a fixed spatial location. Most instances of this &...^
    TransitTerminal4A TransitTerminal is a place where travellers or transportation devices begin or end their journe...^
        Airport.Airport is the subclass of TransitTerminals for Airplanes (fixed-wing Aircraft).^
        Heliport.Heliport is a TransitTerminal designed for the takeoff and landing of Helicopters.^
        RailwayTerminal.RailwayTerminal is the subclass of TransitTerminals designed for Trains. A RailwayTerminal incl...^
        TrainStation.TrainStation is the subclass of Buildings that are located at a RailwayTerminal and used in sup...^

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