(subclass WaterCurrent FlowRegion) | Geography.kif 4931-4931 | WaterCurrent は FlowRegion の subclass では %n |
(subclass WaterCurrent WaterArea) | Geography.kif 4932-4932 | WaterCurrent は 水域 の subclass では %n |
(subclass LittoralCurrent WaterCurrent) | Geography.kif 5039-5039 | LittoralCurrent は WaterCurrent の subclass では %n |