About: http://webisa.webdatacommons.org/93996925

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	In any case, here is a method that works for me under PyObjC. It assumes it is part of a Cocoa object and that you have done a from AppKit import * already.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com