Subject	concussion
Predicate	occur in
Object	football
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.9583
Neighborhood Sigma	0.9722
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source concussions occur in football 2 Google Autocomplete concussion occur in football 2 Google Autocomplete a concussion occur in football 2 Google Autocomplete