en rough terrain (n)
― IsA ⟶
Weight: 1.0
en natural thing (n) Source: OpenCyc 2012
en rough terrain (n)
― IsA ⟶
Weight: 1.0
en geographical region (n) Source: OpenCyc 2012
en landslide area (n)
― IsA ⟶
Weight: 1.0
en rough terrain (n) Source: OpenCyc 2012