A tourist can be busy.Logical formLearned from13 sentences. A squabbling can be busy.Logical formLearned from13 sentences. (Office workers) can be busy.Logical formLearned from13 sentences. Inmates can be busy.Logical formLearned from13 sentences. A singer can be busy.Logical formLearned from13 sentences. Police can be busy.Logical formLearned from13 sentences. (Subway stations) can be busy.Logical formLearned from13 sentences. An international waterway can be busy.Logical formLearned from12 sentences. An arterial road can be busy.Logical formLearned from12 sentences. A (road intersection) can be busy.Logical formLearned from12 sentences. Musicians can be busy.Logical formLearned from12 sentences. A fighter can be busy.Logical formLearned from12 sentences. Officials can be busy.Logical formLearned from12 sentences. A (traffic junction) can be busy.Logical formLearned from12 sentences. A nurse can be busy.Logical formLearned from12 sentences.