PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • CO2 is a non-flammable gas, unlike O2, oxygen, which is very flammable.
http://www.w3.org/ns/prov#wasQuotedFrom
  • abovetopsecret.com