Subject	tornado
Predicate	spin in
Object	northern hemisphere
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.1335
Neighborhood Sigma	0.1335
Local Sigma	0.8624
Example Sentences	Sentence Occurrences Source tornadoes spin counterclockwise in the northern hemisphere 4 Google Autocomplete, Answers.com Questions