PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A Green Certificate - terminology used in Europe - also known as Renewable Energy Certificates (RECs) in the USA, are a tradable commodity proving that certain electricity is generated using renewable energy sources.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org