Subject	smog
Predicate	has_property
Object	secondary pollutant
Modality	Modality Occurrences some[subj/photochemical] 1
Polarity	POSITIVE
Plausibility	0.0050
Neighborhood Sigma	0.0051
Local Sigma	0.0083
Example Sentences	Sentence Occurrences Source photochemical smog is a secondary pollutant 1 Google Autocomplete