PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • IXO's imaging X-ray polarimeter will be a powerful tool to explore sources such as neutron stars and black holes, measuring their properties and how they impact their surroundings.[24]
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org