if(exp.getExpressionType() == ILogicExpression.NOT){
try{
obj = model.createOWLComplementClass(
(RDFSClass)convertSetValue(exp.getOperand()));
}catch(ClassCastException ex){
throw new IOntologyError("Cannot complement "+exp.getOperand()+", because it is not a class",ex);
}
}else
obj = convertSetValue(exp.getOperand());
}else if(exp.getExpressionType() == ILogicExpression.AND){
OWLIntersectionClass ac = model.createOWLIntersectionClass();