Assertion: geyser's eruption | /r/HasProperty | preceded by eruption
Facets:
value: from grotto fountain geyser
type: LOCATION
value: usually
type: TEMPORAL
Source sentences:
text: Eruptions are usually preceded by an eruption from Grotto Fountain Geyser, or both Grotto Fountain Geyser and South Grotto Fountain Geyser.