PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Geologist David Blake from NASA's Ames Research Center says rocks are a great place to look for clues because certain minerals form only under certain circumstances.
http://www.w3.org/ns/prov#wasQuotedFrom
  • kasu.org