PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Automated grading makes it difficult to include problems with solutions that require graphs, explanations, proofs, or other narrative or pictorial input.
http://www.w3.org/ns/prov#wasQuotedFrom
  • unc.edu