Subject	polythene bag
Predicate	has_effect
Object	harmful
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.7676
Neighborhood Sigma	0.9184
Local Sigma	0.7676
Example Sentences	Sentence Occurrences Source polythene bags are harmful 8 Google Autocomplete polythene bags is harmful 2 Google Autocomplete a polythene bag is harmful 8 Google Autocomplete