PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As another illustration of the vagueness of the English language, Tierney looks at another famous problem that often engenders wrong answers: ???Mr. Smith has two children, at least one of whom is a boy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • causeweb.org