Subject	plate tectonics
Predicate	play
Object	a role in earthquakes
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9459
Neighborhood Sigma	0.9487
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source plate tectonics play a role in earthquakes and seismic activity 1 Google Autocomplete plate tectonics play a role in earthquakes 1 Answers.com Questions