About: http://webisa.webdatacommons.org/218004751

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	Examples of suitable valves include a gate, block, ball, check, or other device for selectively allowing flow therethrough.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk