I remember an old discussion on RDF and Pharo:
http://forum.world.st/RDF-Framework-and-Pharo-td3526849.htmlJust as an info and for the records:
Now Christian Haider released [RDF] - an RDF/XML implementation in VisualWorks Smalltalk
https://wiki.pdftalk.de/doku.php?id=rdfLicense is MIT. Maybe someone is interested in a port to Pharo and/or Squeak/Cuis.