code: @Override
      public  org.openrdf.model.Statement createObjectProperty(QualifiedName subject, 
                                                               QualifiedName pred,
                                                               QualifiedName object) {
  	return new StatementImpl(qualifiedNameToResource(subject), 
  	                         qualifiedNameToURI(pred),
  				 qualifiedNameToResource(object));
      }
docs: /* (non-Javadoc)
  @see org.openprovenance.prov.rdf.GraphBuilder#createObjectProperty(org.openprovenance.prov.model.QualifiedName, org.openprovenance.prov.model.QualifiedName, org.openprovenance.prov.model.QualifiedName)