PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Adding to the current hot water radiator system ??????? expensive and I understand there is a risk of leaks or other problems developing by opening the old system.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bobvila.com