Subject	green roof
Predicate	has_trait
Object	good
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.6561
Neighborhood Sigma	0.6733
Local Sigma	0.6561
Example Sentences	Sentence Occurrences Source green roofs are good 6 Google Autocomplete a green roof is good 1 Google Autocomplete