Directories can be dynamic.Logical formLearned from9 sentences. A (directory argument) can be null.Logical formLearned from9 sentences. A person may enter a directory.Logical formLearned from9 sentences. A directory may stack on logout.Logical formLearned from9 sentences. (Installation directories) may be named by variables.Logical formLearned from9 sentences. Directories can be in a variable.Logical formLearned from9 sentences. A (default search order) can be for (system directories).Logical formLearned from9 sentences. (Source files) can be in a directory.Logical formLearned from9 sentences. A (directory server) may pertain-to persons.Logical formLearned from9 sentences. A directory can be a subdirectory of a directory.Logical formLearned from9 sentences. A directory may be given.Logical formLearned from9 sentences. Browsing may be enabled for a directory.Logical formLearned from9 sentences. (Telephone directories) can be classified.Logical formLearned from9 sentences. A directory can be constituted-of-or-filled-with staff.Logical formLearned from9 sentences. A directory may contain a subdirectory.Logical formLearned from9 sentences.