PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 20120274475Automated Well Control Method and Apparatus - A drilling control system monitors and compares drilling and completion operation sensor values and autonomously acts in response to conditions such as a kick or surge.
http://www.w3.org/ns/prov#wasQuotedFrom
  • faqs.org