The other day I decided to remove the JRDF GUI from Sourceforge. Subsequently, there has been a need to download it again. :-) It's here for the time being:
Like I've said, none of the operations implemented in JRDF match SPARQL's. In order not to throw away the work I've done I'm going to spend sometime soon renaming it and changing the syntax (to be more like Tutorial D). The name might be UQL (Unknown Query Language), RRQL (Relational RDF Query Language) or DRQL (tutorial D like RDF Query Language). Any suggestions?