About: http://webisa.webdatacommons.org/276009423

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	This valve is automatically closed except during exhalation to prevent ingress of the environmental atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com