PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 90 years to get there at at least a third of the speed of light and then 90 years to bring back proof, not including the years to build a craft to do it.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cnn.com