Subject	oil spill
Predicate	has_effect
Object	harmful
Modality	Modality Occurrences TBC[so harmful] 1
Polarity	POSITIVE
Plausibility	0.9040
Neighborhood Sigma	0.9043
Local Sigma	0.9040
Example Sentences	Sentence Occurrences Source oil spills are harmful 4 Google Autocomplete oil spills is harmful 6 Google Autocomplete oil spills are so harmful 1 Answers.com Questions