PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In non-critical applications, corrosion is a problem because a corroded heat exchanger is less efficient and energy is wasted.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pollutiononline.com