(subclass TransitwayObstacle Object) | Mid-level-ontology.kif 15250-15250 | Transitway obstacle is a subclass of object |
(subclass Dam TransitwayObstacle) | Transportation.kif 3065-3065 | Dam is a subclass of transitway obstacle |
(subclass CanalLockGate TransitwayObstacle) | Transportation.kif 3071-3071 | Canal lock gate is a subclass of transitway obstacle |
(subclass Door TransitwayObstacle) | Mid-level-ontology.kif 15255-15255 | Door is a subclass of transitway obstacle |