PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The quantitatory descriptor singular is the form of a noun that serves to indicate that the quantity of that noun is one, that the noun is a unit.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org