PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The air around us is 21% Oxygen and the rest is a mixture of carbon dioxide, nitrogen, hydrogen and a few other inert gasses.
http://www.w3.org/ns/prov#wasQuotedFrom
  • survivopedia.com