test common namespac test common namespac namespac sn namespac argouml model namespac uml ns token namespac sn namespac argouml model namespac uml ns token namespac result namespac sn common namespac sn equal argouml model result sn pop namespac element result namespac sn common namespac sn equal argouml result sn pop namespac element result namespac sn common namespac sn equal result sn pop namespac element result namespac sn common namespac sn equal result 