A level may pertain-to a (network protocol hierarchy).Logical formLearned from2 sentences. Hierarchies may be created from a root.Logical formLearned from2 sentences. Directories can be in a (naming hierarchy).Logical formLearned from2 sentences. A (trust hierarchy) can be around a (naming hierarchy).Logical formLearned from2 sentences. A hierarchy can be on domains.Logical formLearned from2 sentences. A (containment hierarchy) may be used for namming objects.Logical formLearned from2 sentences. A (containment hierarchy) can be important.Logical formLearned from2 sentences. Some hierarchy may be defined by a (registration process).Logical formLearned from2 sentences. Sub-elements can be at a level of a hierarchy.Logical formLearned from2 sentences. Hierarchy may be used.Logical formLearned from2 sentences. A level can be in an (inheritance hierarchy).Logical formLearned from2 sentences. A (domain hierarchy) may be based on political geography.Logical formLearned from2 sentences. Hierarchies may be aggregated.Logical formLearned from2 sentences. A hierarchy may provide a mechanism.Logical formLearned from2 sentences. An entry may consist of a hierarchy of an address.Logical formLearned from2 sentences.