PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As the accretion builds up, atoms that can not combine, such as helium, get pushed to the surface and drift into the water.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dailykos.com