About: http://webisa.webdatacommons.org/110512083

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	What strings are already is a user-defined type, but with horrible enforcement. i.e. things that should not be allowed are only disallowed if you opt-in using phobos' template constraints.
http://www.w3.org/ns/prov#wasQuotedFrom	digitalmars.com