PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Incidentally, this one's particularly tricky to search for because you need to exclude the word 'problem' and 'a' is a stop word.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackexchange.com