PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Externally defined schemas: An XML document does not necessarily need a formal schema, whereas such a schema is an implicit part of a relational database.
http://www.w3.org/ns/prov#wasQuotedFrom
  • xml.com