PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Blowing agents include a class of materials that dissociates at high temperatures to give off gases such as nitrogen and carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com