Subject	convection current
Predicate	cause
Object	earthquakes
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9146
Neighborhood Sigma	0.9210
Local Sigma	0.9215
Example Sentences	Sentence Occurrences Source convection currents cause earthquakes and volcanoes 4 Google Autocomplete convection currents cause earthquakes 6 Google Autocomplete, Answers.com Questions