Periods can be constituted-of-or-filled-with duty.Logical formLearned from28 sentences. A facility may have a duty.Logical formLearned from28 sentences. A person can be on (night duty).Logical formLearned from28 sentences. A duty may pertain-to a director.Logical formLearned from28 sentences. (Police officers) can be on duty.Logical formLearned from28 sentences. A duty may pertain-to a chair.Logical formLearned from28 sentences. Fathers may demand a duty of citizen.Logical formLearned from28 sentences. A duty can be as a human being.Logical formLearned from28 sentences. Duties can be at work.Logical formLearned from28 sentences. A point can be constituted-of-or-filled-with duty.Logical formLearned from28 sentences. A duty may undergo an abrogation.Logical formLearned from28 sentences. A duty can be earnest.Logical formLearned from28 sentences. A person may take duties.Logical formLearned from28 sentences. Citizens may have a duty.Logical formLearned from28 sentences. Some duties may be required of employees.Logical formLearned from28 sentences.