PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Late this morning, people started reporting to law enforcement there was a quote-unquote fireball and some people reported an explosion, which we suspect was probably a sonic boom, said Roland Herwig, a spokesman for the FAA's Southwest Region.
http://www.w3.org/ns/prov#wasQuotedFrom
  • spaceflightnow.com