Subject	radioactivity
Predicate	has_effect
Object	harmful
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.7642
Neighborhood Sigma	0.7839
Local Sigma	0.7642
Example Sentences	Sentence Occurrences Source radioactivity is harmful 8 Google Autocomplete, Answers.com Questions radioactivity is useful and harmful 4 Google Autocomplete, Answers.com Questions