PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Air is a mixture of oxygen (O2), nitrogen (N2), CO2, water vapor, ozone, and other gases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es