About: http://webisa.webdatacommons.org/136739885

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	Valves 518 a-g may comprise any suitable valve known in the art, for 20 example, a pinch-off valve including a screw as shown in FIGS. 5 and 6.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com