public function getMetaClasses()
    {
        $returnValue = null;

        
        $returnValue = new core_kernel_classes_ContainerCollection(new core_kernel_classes_Container(__METHOD__),__METHOD__);
        
        $classClass = new core_kernel_classes_Class(OntologyRdfs::RDFS_CLASS);
        foreach($classClass->getSubClasses(true) as $uri => $subClass){
        	$returnValue->add($subClass);
        }
		

        return $returnValue;
    }