PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The way in which this question sort of answers itself is probably encouraging more people to post recommendation-ish answers; I would consider moving a lot of this information down to an answer and either making it a wiki or expanding on some of the details (e.g. why is a thick bottom important?
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackexchange.com