PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If performance is an issue, you might not want to incur the costs of implicitly navigating through a bunch of objects every time you call a top-level method. (This can be counteracted by caching intermediate objects, though that might be cumbersome in practice.) Similar issues can occur when you are using multithreading or distributed systems, where physical indirection can cause problems.
http://www.w3.org/ns/prov#wasQuotedFrom
  • c2.com