Subject	pollution
Predicate	has_property
Object	issue
Modality	Modality Occurrences TBC[environmental issue] 1 TBC[ethical issue] 1 TBC[important issue] 1 TBC[global issue] 1
Polarity	POSITIVE
Plausibility	0.7778
Neighborhood Sigma	0.7795
Local Sigma	0.7778
Example Sentences	Sentence Occurrences Source pollution is an environmental issue 1 Google Autocomplete pollution is an ethical issue 1 Google Autocomplete pollution is an important issue 1 Google Autocomplete pollution is a global issue 1 Google Autocomplete pollution have to be an issue 2 Answers.com Questions