Subject	vein
Predicate	contain
Object	valves
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.7913
Neighborhood Sigma	0.7913
Local Sigma	1.0000
Example Sentences	Sentence Occurrences Source veins and lymphatic vessels contain valves 2 Google Autocomplete veins contain valves 4 Google Autocomplete, Answers.com Questions veins contains valves 2 Answers.com Questions