PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Even people are mostly empty space and if compressed to black hole density would be far smaller than the dot of an ???i???.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thinkprogress.org