Subject	root canal
Predicate	need
Object	to be redone
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9753
Neighborhood Sigma	0.9758
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source root canals need to be redone 1 Google Autocomplete a root canal need to be redone 3 Google Autocomplete