Assertion: cave's shaft | /r/HasProperty | vertical
Facets:
Source sentences:
text: The cave, located within the Harrison-Crawford State Forest, has more than 9 miles of explored passageways, huge rooms, vertical shafts, cave breakdowns, and speleothems.
text: The cave is 2,846 m (9,337 ft) long and features numerous vertical shafts running through the limestone.
text: Pit caves (vertical caves, potholes, or simply "pits") consist of a vertical shaft rather than a horizontal cave passage.