PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • George Washington was a great man, but saying that secession was unthinkable because he wrote a letter does not really address the issues.
http://www.w3.org/ns/prov#wasQuotedFrom
  • historynewsnetwork.org