Subject	pollutant
Predicate	differ from
Object	secondary pollutant
Modality	Modality Occurrences some[subj/a primary] 1
Polarity	POSITIVE
Plausibility	0.0009
Neighborhood Sigma	0.0009
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source a primary pollutant differ from a secondary pollutant 1 Google Autocomplete