Assertion: volcano's lava lake | /r/CapableOf | drain below the rim
Facets:
value: according to visitors to the site
type: OTHER
value: rapidly
type: MANNER
Source sentences:
text: When the new eruptive episode began, the lava lake at the South Pit Crater drained rapidly to around 80-100 m below the rim, according to visitors to the site a few weeks later.