PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • They have been known to cast bridge-lines up to 25 metres in length, and their silk is the toughest biological material ever studied -- even stronger than Kevlar.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wired.co.uk