Subject	eruption
Predicate	can change
Object	earth 's surface
Modality	Modality Occurrences some[subj/a volcanic] 1
Polarity	POSITIVE
Plausibility	0.0005
Neighborhood Sigma	0.0006
Local Sigma	0.0171
Example Sentences	Sentence Occurrences Source a volcanic eruption can change earth's surface 1 Google Autocomplete