Assertion: volcano's rift zone | /r/HasProperty | dominant feature
Facets:
value: on the volcano
type: LOCATION
Source sentences:
text: The eastern rift zone in particular is a dominant feature on the volcano; it is almost entirely covered in lava erupted in the last 400 years, and at its crest near the summit is 2 to 4 km (1 to 2 mi) wide.