PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While at the moment it would be difficult to detect, if there was a giant planet in the habitable zone it wouldn???t immediately mean that the system couldn???t have a habitable world, because there???d be the possibility of that giant planet having a rocky satellite!
http://www.w3.org/ns/prov#wasQuotedFrom
  • boingboing.net