Assertion: volcano | /r/CapableOf | produce its first flank eruption
Facets:
value: since 1991–1993
type: TEMPORAL
value: in july
type: TEMPORAL
Source sentences:
text: Following six years (1995–2001) of unusually intense activity at the four summit craters of Etna, the volcano produced its first flank eruption since 1991–1993 in July–August 2001.