Subject	volcanic eruption
Predicate	can change
Object	surface of earth
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.8784
Neighborhood Sigma	0.8815
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source volcanic eruptions can change the surface of the earth 4 Google Autocomplete a volcanic eruption can change the surface of the earth 1 Google Autocomplete volcanic eruptions can change the surface of earth 2 Answers.com Questions