A (city avenue) can be busy.Logical formLearned from5 sentences. A (concert career) can be busy.Logical formLearned from5 sentences. A female can be busy with studies.Logical formLearned from5 sentences. A pen can be busy.Logical formLearned from5 sentences. Railroads can be busy.Logical formLearned from5 sentences. A festive season can be busy.Logical formLearned from5 sentences. A transport can be busy.Logical formLearned from5 sentences. A metropolitan city can be busy.Logical formLearned from5 sentences. A railroad can be busy.Logical formLearned from5 sentences. (Band members) can be busy.Logical formLearned from5 sentences. Tracks can be busy.Logical formLearned from5 sentences. An orchestra can be busy.Logical formLearned from5 sentences. A public area can be busy.Logical formLearned from5 sentences. A (taxi rank) can be busy.Logical formLearned from5 sentences. A fleet can be busy.Logical formLearned from5 sentences.