Subject	natural gas
Predicate	has_property
Object	better for the environment
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9875
Neighborhood Sigma	0.9877
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source natural gas is better for the environment 3 Google Autocomplete, Answers.com Questions