public OWLOntology parseConclusionOntology(SerializationFormat format)
throws OntologyParseException {
try {
OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
manager.setSilentMissingImportsHandling( true );
manager.clearIRIMappers();
ImportsHelper.loadImports( manager, this, format );
OWLOntology o = parsedConclusion.get( format );
if( o == null ) {
String l = getConclusionOntology( format );