PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While I can not recall for sure if they cause the engine to check to make sure the number and types of parameters passed are good, they do at least provide a convenient way to document the types and order of values to be passed, which at least would seem to me to help when someone is looking at a module written using them.
http://www.w3.org/ns/prov#wasQuotedFrom
  • perlmonks.org