PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Additionally, a strong backflow of cloudy water when the pressure is released represents success as that reflects the removal of the sand, rocks, mineral deposits, and other debris that previously occupied the newly-opened cracks and fissures.
http://www.w3.org/ns/prov#wasQuotedFrom
  • drillforwater.com