Assertion: volcano's eruption | /r/HasProperty | long-lived
Facets:
value: extremely
type: DEGREE
value: often
type: DEGREE
Source sentences:
text: Hawaiian eruptions are often extremely long-lived; Puʻu ʻŌʻō, a cinder cone of Kīlauea, erupted continuously from January 3, 1983 until April 2018.