PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For all we have learned so far, however, one mystery still remains: why did no one see it coming, particularly at a time when astronomers were tracking DA14, that 100-foot-wide asteroid that was 20,000 miles further away and presumably harder to spot?
http://www.w3.org/ns/prov#wasQuotedFrom
  • pbs.org