Assertion: fault's activity | /r/HasProperty | marked by lava fountains
Facets:
Source sentences:
text: Vigorous activity began in October 1999, marked by lava fountains and large large amounts of ejected ballistic bombs, blocks and lapilli falling as far as 4 km from the crater. ...
text: Vigorous activity began in October 1999, marked by lava fountains and large large amounts of ejected ballistic bombs, blocks and lapilli falling as far as 4 km from the crater. ...