PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The energy input to producing basic materials such as cement, fertilizer, steel, plastics and fuel to electricity are approaching thermodynamic limits.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blogspot.com