PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This gap can be filled with a gas such as xenon or argon in order to increase the level of energy efficiency.
http://www.w3.org/ns/prov#wasQuotedFrom
  • doubleglazingpages.co.uk