PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Commonly used with center-pivot irrigation systems, their weakness is that some water is lost to evaporation even before it hits the ground, especially in hot, arid settings.
http://www.w3.org/ns/prov#wasQuotedFrom
  • earthpolicy.org