PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Today is the birthday of the smiley :-) While such literary giants as Vladimir Nabokov and Ambrose Bierce had previously proposed typographical methods of indicating a joke, the modern emoticon was invented n 1982 by Scott Fahlman of Carnegie Mellon University in America, and announced at 11:44 am on September 19.
http://www.w3.org/ns/prov#wasQuotedFrom
  • metro.co.uk