Subject	human being
Predicate	contribute
Object	to the sulfur cycles
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9489
Neighborhood Sigma	0.9601
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source human beings contribute to the phosphorus and sulfur cycles 4 Google Autocomplete, Answers.com Questions