PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • From Ken Jennings most recent mother@%$in' postHey, do any math types out there have any sense of the expected ???order of difficulty??? of the seven (or six!) Millennium Prize problems?
http://www.w3.org/ns/prov#wasQuotedFrom
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