PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Dark matter is a misnomer; it is clear matter, as much as helium or neutr??n is almost clear matter.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org