PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A deep understanding of our physical universe teaches us, contrary to appearance, that everything is relative except the speed at which light travels: 180,000 miles per second.
http://www.w3.org/ns/prov#wasQuotedFrom
  • osv.com