About: http://webisa.webdatacommons.org/38927184

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	The mechanical drive apparatus normally required in hydraulic pumping systems, including chains, gears, etc., is also eliminated as well.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com