Subject	rhubarb leaf
Predicate	has_effect
Object	poisonous
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.8514
Neighborhood Sigma	0.8871
Local Sigma	0.8514
Example Sentences	Sentence Occurrences Source rhubarb leaves are poisonous 13 Google Autocomplete, Answers.com Questions rhubarb leaves is poisonous 2 Google Autocomplete rhubarb leaf is poisonous 4 Google Autocomplete