PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At the current level of our technology the highest efficiency that is attainable is probably only 15 to 20 percent.
http://www.w3.org/ns/prov#wasQuotedFrom
  • benefits-of-recycling.com