About: http://webisa.webdatacommons.org/269294537

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	In embodiments where the driving mechanism is a valve or a hydraulic motor, a valve may control the amount of fluid that reaches the driving mechanism, which may also control the speed at which they rotate.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com