A copy may pertain-to a (directory hierarchy).Logical formLearned from3 sentences. A level may pertain-to a polynomial-time hierarchy.Logical formLearned from3 sentences. A hierarchy may be knowned.Logical formLearned from3 sentences. A (process hierarchy) may pertain-to a person.Logical formLearned from3 sentences. A location can be in an (object hierarchy).Logical formLearned from3 sentences. A level may pertain-to a (processing hierarchy).Logical formLearned from3 sentences. Files can be in a (file hierarchy).Logical formLearned from3 sentences. Programs can be for (memory hierarchies).Logical formLearned from3 sentences. A hierarchy can be intended.Logical formLearned from3 sentences. A term can be in a hierarchy.Logical formLearned from3 sentences. A hierarchy may pertain-to concepts.Logical formLearned from3 sentences. Objects can be in a hierarchy.Logical formLearned from3 sentences. (Object hierarchies) may be constructed with lists of objects of object.Logical formLearned from3 sentences. Some sites can be in a hierarchy.Logical formLearned from3 sentences. A hierarchy can be constituted-of-or-filled-with missions.Logical formLearned from3 sentences.