PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In practice, a hash-based join or other shortcuts are easier as cross-join based joins are often slow because it produces a lot of rows which can be discarded by the predicate (so you can better use the predicate to do the join to filter out rows which do not need to be considered in the first place.)
http://www.w3.org/ns/prov#wasQuotedFrom
  • ayende.com