Subject	blood vessel
Predicate	have
Object	valves
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.7454
Neighborhood Sigma	0.7558
Local Sigma	0.7455
Example Sentences	Sentence Occurrences Source blood vessels have valves 4 Google Autocomplete, Answers.com Questions blood vessels and lymph vessels have valves 2 Google Autocomplete