public OWLOntologyFormat parse(OWLOntologyDocumentSource documentSource, OWLOntology ontology, OWLOntologyLoaderConfiguration configuration) throws OWLParserException, IOException, OWLOntologyChangeException, UnloadableImportException {
InputSource is = null;
try {
final RDFXMLOntologyFormat format = new RDFXMLOntologyFormat();
final RDFParser parser = new RDFParser() {
@Override
public void startPrefixMapping(String prefix, String IRI) throws SAXException {
super.startPrefixMapping(prefix, IRI);
format.setPrefix(prefix, IRI);
}
@Override
public void startElement(String namespaceIRI, String localName, String qName, Attributes atts) throws SAXException {