fixed to pass in uri of RDFS namespace to parse; marked as known_issue as it's still not passing
fixed to pass in uri of RDFS namespace to parse; marked as known_issue as it's still not passing

RDFLib/rdflib,dbs/rdflib,armandobs14/rdflib,dbs/rdflib,marma/rdflib,yingerj/rdflib,armandobs14/rdflib,RDFLib/rdflib,ssssam/rdflib,armandobs14/rdflib,RDFLib/rdflib,RDFLib/rdflib,avorio/rdflib,yingerj/rdflib,avorio/rdflib,yingerj/rdflib,ssssam/rdflib,avorio/rdflib,marma/rdflib,yingerj/rdflib,ssssam/rdflib,dbs/rdflib,avorio/rdflib,armandobs14/rdflib,dbs/rdflib,marma/rdflib,ssssam/rdflib,marma/rdflib