Assertion: volcano's lava lake | /r/CapableOf | rise below the caldera floor
Facets:
value: gradually
type: MANNER
value: back up to
type: OTHER
Source sentences:
text: During the following months activity remained high both at the new eruption site and at the Summit Caldera where the lava lake in the South Pit Crater gradually rose back up to about 50 m below the caldera floor.