About: http://webisa.webdatacommons.org/334851553

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	It is to be understood that such placement can be made upon installation, such as at the surface of the well, or by previous actions, such as can be caused by other control systems in the well.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com