Subject	leaf
Predicate	turn
Object	black
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9965
Neighborhood Sigma	0.9965
Local Sigma	0.9971
Example Sentences	Sentence Occurrences Source leaves are turning black 5 Google Autocomplete leaves turn black 5 Google Autocomplete leaves on plants turn black 3 Google Autocomplete leaves of tomato plant turn black 1 Answers.com Questions