A surgery may last some hours.Logical formLearned from92 sentences. A mission may last some days.Logical formLearned from92 sentences. A trip may last.Logical formLearned from92 sentences. A battery may last some hours.Logical formLearned from92 sentences. A festival may last some days.Logical formLearned from92 sentences. A patience may last.Logical formLearned from92 sentences. A performance may last some minutes.Logical formLearned from91 sentences. A hearing may last.Logical formLearned from91 sentences. A sale may last.Logical formLearned from91 sentences. A partnership may last.Logical formLearned from91 sentences. Benefits may last.Logical formLearned from90 sentences. A meeting may last some hours.Logical formLearned from89 sentences. Days may last.Logical formLearned from88 sentences. A festival may last for some days.Logical formLearned from87 sentences. A quake may last.Logical formLearned from87 sentences.