/*}
return null;*/
}
public static void addEquivalentClasses(OWLOntologyManager manager, OWLOntology ontology, Set<OWLClass> clazzes) throws OWLOntologyChangeException {
manager.addAxiom(ontology, new OWLEquivalentClassesAxiomImpl(new OWLDataFactoryImpl(), clazzes, Collections.<OWLAnnotation>emptySet()));
}