PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • WMAP mapped the cosmic microwave background, the radiation that comes to us from when the universe was a mere 370,000 years old, with unprecedented precision.
http://www.w3.org/ns/prov#wasQuotedFrom
  • edgeofphysics.com