PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, by putting each question on a page, I could implement the equivalent of the Exclusive do not Know (in my case, None) question using Equation question types between pages.
http://www.w3.org/ns/prov#wasQuotedFrom
  • limesurvey.org