Assertion: volcano's vent | /r/CapableOf | create multiple lava flows
Facets:
value: periodically
type: TEMPORAL
Source sentences:
text: The initial vent or vents created multiple lava flows that traveled generally NE and SW from their sources, creating at least one lava lake that persisted for about a year (figure 51).
text: Periodically, Stromboli's eruptive style transitions and vents near the summit produce lava flows that are funneled by the Sciara del Fuoco to the sea; the most recent of these occurred in 2002 and 2007.
text: The initial vent or vents created multiple lava flows that traveled generally NE and SW from their sources, creating at least one lava lake that persisted for about a year (figure 51).