Assertion: lava tube | /r/CapableOf | run below the surface
Facets:
value: anywhere from 1–15 metres
type: OTHER
Source sentences:
text: Lava tubes can be up to 14–15 metres (46–49 ft) wide, though are often narrower, and run anywhere from 1–15 metres (3 ft 3 in–49 ft 3 in) below the surface.