A circular dna can be closed.Logical formLearned from8 sentences. A cover can be closed.Logical formLearned from8 sentences. An orphanage can be closed.Logical formLearned from8 sentences. A throttle can be closed.Logical formLearned from8 sentences. A (ticket system) can be closed.Logical formLearned from8 sentences. A (dialing plan) can be closed.Logical formLearned from8 sentences. An entrance may remain closed.Logical formLearned from8 sentences. A basket can be closed.Logical formLearned from8 sentences. A tower can be closed.Logical formLearned from8 sentences. An island can be closed.Logical formLearned from8 sentences. A (railway station) can be closed.Logical formLearned from8 sentences. A specification can be closed.Logical formLearned from8 sentences. A system can be a closed system.Logical formLearned from8 sentences. An abbey can be closed.Logical formLearned from8 sentences. A conference can be closed.Logical formLearned from8 sentences.