PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Kepler satellite is looking for planets around stars other than the Sun, known as exoplanets, since the spring of 2009.
http://www.w3.org/ns/prov#wasQuotedFrom
  • spacedaily.com