An absence can be congenital.Logical formLearned from19 sentences. An absence may pertain-to an officer.Logical formLearned from19 sentences. Notice may pertain-to an absence.Logical formLearned from19 sentences. Requests can be for leaves of absence.Logical formLearned from19 sentences. Students may request a leave of absence.Logical formLearned from19 sentences. An absence may pertain-to data.Logical formLearned from19 sentences. An absence can be practical.Logical formLearned from19 sentences. An absence can be excusable.Logical formLearned from19 sentences. An absence can be unannounced.Logical formLearned from19 sentences. Absences can be mysterious.Logical formLearned from19 sentences. An absence can be from a forum.Logical formLearned from19 sentences. An absence can be constituted-of-or-filled-with mannerisms.Logical formLearned from19 sentences. Absences may pertain-to children.Logical formLearned from19 sentences. An absence can be from a blogosphere.Logical formLearned from19 sentences. A house can be in an absence.Logical formLearned from19 sentences.