PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Some education systems consider, in part, the use of user-generated content, i.e. content created by teachers and students themselves.
http://www.w3.org/ns/prov#wasQuotedFrom
  • worldbank.org