PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • c) post advertisements that point to spec work, contests or other opportunities to solicit customized, unpaid creative work from creative professionals
http://www.w3.org/ns/prov#wasQuotedFrom
  • coroflot.com