(subclass Erosion Removing) | Geography.kif 2674-2674 | Erosion は 除却 の subclass では %n |
(subclass Erosion GeologicalProcess) | Geography.kif 2675-2675 | Erosion は GeologicalProcess の subclass では %n |
(subclass SoilErosion Erosion) | Geography.kif 2945-2945 | SoilErosion は Erosion の subclass では %n |