// DONE
 @Override
 public void visit(OWLObjectExactCardinalityRestriction desc) {
   // desc.getProperty().accept(this);
   desc.getFiller().accept(this);
   OWLDescription d = this.getRelevantDescription();
   this.rebuiltObjects.add(
       this.factory.getOWLObjectExactCardinalityRestriction(
           desc.getProperty(), desc.getCardinality(), d));
 }