PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although philosophers have often found problems in efforts to study the nature and limits of human knowledge, Williams provides the first book that systematically argues against there being such a thing as knowledge of the external world.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ccebook.org