A person may change files.Logical formLearned from29 sentences. A file can be missing.Logical formLearned from29 sentences. Files can be on a desk.Logical formLearned from29 sentences. Files may pertain-to an office.Logical formLearned from29 sentences. A person may lose a file.Logical formLearned from29 sentences. A (phone number file) can be portable.Logical formLearned from29 sentences. A file may be slugged.Logical formLearned from29 sentences. A beginning may pertain-to a (file name).Logical formLearned from29 sentences. A file may be considered.Logical formLearned from29 sentences. A (file system) may pertain-to a user.Logical formLearned from29 sentences. Files may be identified.Logical formLearned from29 sentences. Files may pertain-to a program.Logical formLearned from29 sentences. Files may pertain-to a system.Logical formLearned from29 sentences. A file can be listed.Logical formLearned from29 sentences. A file can be in bytes.Logical formLearned from29 sentences.