A post of a serbian president may be left vacant.Logical formLearned from4 sentences. A seat of a country can be vacant.Logical formLearned from4 sentences. Facilities can be vacant.Logical formLearned from4 sentences. A seat may be kept vacant.Logical formLearned from4 sentences. A foreign minister can be vacant.Logical formLearned from4 sentences. Posts may be left vacant by defectors.Logical formLearned from4 sentences. A seat may be made vacant by a death of deputy.Logical formLearned from4 sentences. Some percent of positions can be vacant.Logical formLearned from4 sentences. A total of some seats can be vacant.Logical formLearned from4 sentences. A title may be left vacant by a male.Logical formLearned from4 sentences. Top posts can be vacant.Logical formLearned from4 sentences. A (head coach) can be vacant.Logical formLearned from3 sentences. A (chairman post) can be vacant.Logical formLearned from3 sentences. Some days of an office may be declared vacant.Logical formLearned from3 sentences. A post of chairman of a body can be vacant.Logical formLearned from3 sentences.