PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Argon, krypton, xenon, and sulfur hexaflouride are examples of gases which are commonly substituted for air in insulating glass windows to reduce energy transfer.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com