PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Visual association, math problems, and other non-subjective questions relayed through an image also qualify. share|improve this answer edited Sep 23 '08 at 2:12
http://www.w3.org/ns/prov#wasQuotedFrom
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