PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although the sodium light requires less energy that other types of light and is more efficient, there are drawbacks to the use of these light sources.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ck12.org