Assertion: cave's passage | /r/CapableOf | total about 15,000 feet
Facets:
value: in length
type: OTHER
Source sentences:
text: Oregon Caves is a solutional cave, with passages totaling about 15,000 feet (4,600 m), formed in marble.
text: The main cave has known passages totaling about 15,000 feet (4,600 m) in length.