Subject	vein
Predicate	have
Object	valves
Modality	Modality Occurrences TBC[thin walls] 3 some[subj/peripheral] 1 some[subj/large] 1 TBC[one-way valves] 1
Polarity	POSITIVE
Plausibility	0.8812
Neighborhood Sigma	0.8812
Local Sigma	0.8812
Example Sentences	Sentence Occurrences Source veins have valves 6 Google Autocomplete, Answers.com Questions veins have thin walls and valves 4 Google Autocomplete veins and venules have valves 1 Google Autocomplete peripheral veins have valves 1 Google Autocomplete large veins have valves 1 Google Autocomplete veins and venues have valves 1 Google Autocomplete veins have one-way valves 1 Answers.com Questions