Assertion: volcano's eruption | /r/CapableOf | produce ash-free lava fountains
Facets:
value: largely
type: DEGREE
Source sentences:
text: Eruptions from at least 3 vents all produced largely ash-free lava fountains that rose <=150 m. Vent 4 in Crater 3 (figure 34) ejected low lava fountains about every 10 minutes between 1700 and 2000, but then remained inactive for several hours.