Subject	wave
Predicate	cause
Object	erosion
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9733
Neighborhood Sigma	0.9733
Local Sigma	0.9772
Example Sentences	Sentence Occurrences Source waves cause erosion 16 Google Autocomplete, Answers.com Questions waves cause erosion and deposition 8 Google Autocomplete