Subject	em wave
Predicate	propagate in
Object	vacuum
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.8698
Neighborhood Sigma	0.8698
Local Sigma	0.9744
Example Sentences	Sentence Occurrences Source em waves propagate in vacuum 1 Google Autocomplete em waves propagate in air and vacuum 2 Reddit Questions