Subject	mangrove
Predicate	prevent
Object	erosion
Modality	Modality Occurrences TBC[coastal erosion] 1
Polarity	POSITIVE
Plausibility	0.8827
Neighborhood Sigma	0.9153
Local Sigma	0.9062
Example Sentences	Sentence Occurrences Source mangroves prevent erosion 4 Google Autocomplete, Answers.com Questions mangroves prevent coastal erosion 1 Google Autocomplete