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Term 1: Term 2:

(=>
    (and
        (instance ?WATER River)
        (trafficableForTrafficType ?WATER ?TYPE)
        (subclass ?TYPE WaterVehicle))
    (instance ?RIVER Waterway))
Transportation.kif 1653-1658
(subclass River StreamWaterArea) Geography.kif 5135-5135
(subclass River FreshWaterArea) Geography.kif 5136-5136
(subclass River BodyOfWater) Geography.kif 5137-5137


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