PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But commercial costs have a way of coming down over time for many examples of new technologies, I know because I have lived in an industry that this happens to routinely, especially when more R&D money is continually pumped into them as they are being today.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energycentral.com