PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Scientists do not really know much about it at all, other than the fact that there seems to be a lot of it in the universe.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencedaily.com