A period can be constituted-of-or-filled-with duty.Logical formLearned from36 sentences. Duties may pertain-to a trustee.Logical formLearned from36 sentences. A male may carry_out a duty.Logical formLearned from36 sentences. Duty may be performed.Logical formLearned from36 sentences. A duty can be to a male.Logical formLearned from36 sentences. Life can be a duty.Logical formLearned from36 sentences. A duty can be to a client.Logical formLearned from36 sentences. A duty may pertain-to a weekday.Logical formLearned from36 sentences. A person may be called to active duty.Logical formLearned from36 sentences. A duty may pertain-to a governor.Logical formLearned from36 sentences. A duty may pertain-to a world-city.Logical formLearned from36 sentences. Some duties may be related to an act.Logical formLearned from36 sentences. Duties may include (answering phones).Logical formLearned from36 sentences. A duty may pertain-to a religious-holiday.Logical formLearned from36 sentences. A duty can be to shareholders.Logical formLearned from36 sentences.