Subject	region
Predicate	has_property
Object	extreme environment
Modality	Modality Occurrences some[subj/polar] 1 some[subj/the polar] 1
Polarity	POSITIVE
Plausibility	0.0099
Neighborhood Sigma	0.0102
Local Sigma	0.0112
Example Sentences	Sentence Occurrences Source polar regions are extreme environments 1 Google Autocomplete the polar region is an extreme environment 1 Google Autocomplete