Subject	earthquake
Predicate	occur on
Object	plate boundaries
Modality	Modality Occurrences TBC[convergent plate boundaries] 2 TBC[constructive plate boundaries] 2
Polarity	POSITIVE
Plausibility	0.9603
Neighborhood Sigma	0.9603
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source earthquakes occur on plate boundaries 8 Google Autocomplete, Answers.com Questions earthquakes occur on convergent plate boundaries 2 Google Autocomplete earthquakes occur on constructive plate boundaries 2 Google Autocomplete earthquakes and volcanoes occur on or near plate boundaries 1 Answers.com Questions