fix import
fix import

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