| (subclass Estuary BodyOfWater) | Geography.kif 5179-5179 | Estuary は BodyOfWater の subclass では %n |
| (subclass Estuary SaltWaterArea) | Geography.kif 5180-5180 | Estuary は 塩水地域 の subclass では %n |
| (subclass Estuary Inlet) | Geography.kif 5181-5181 | Estuary は Inlet の subclass では %n |
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