PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It may be that your students understand the first question, but simply find it difficult to answer, especially in a foreign language.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usingenglish.com