Subject	planetary nebula
Predicate	has_property
Object	zero
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.6099
Neighborhood Sigma	0.6355
Local Sigma	0.6099
Example Sentences	Sentence Occurrences Source planetary nebula is zero 2 Google Autocomplete a planetary nebula is zero 1 Google Autocomplete