Subject	convection current
Predicate	cause
Object	the plates to move
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9792
Neighborhood Sigma	0.9861
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source convection currents cause the plates to move 3 Google Autocomplete, Answers.com Questions