Surveys can be urban.Logical formLearned from18 sentences. A public-school system can be urban.Logical formLearned from18 sentences. A tour can be urban.Logical formLearned from18 sentences. An information can be urban.Logical formLearned from18 sentences. Urban areas can be established.Logical formLearned from18 sentences. An urban development can be unplanned.Logical formLearned from18 sentences. A (water conservation) can be urban.Logical formLearned from18 sentences. Public-school districts can be urban.Logical formLearned from18 sentences. Topics can be urban.Logical formLearned from18 sentences. (Research universities) can be urban.Logical formLearned from18 sentences. An interface can be urban.Logical formLearned from18 sentences. Students can be in urban districts.Logical formLearned from18 sentences. Tactics can be urban.Logical formLearned from18 sentences. A province can be urban.Logical formLearned from18 sentences. A riot can be urban.Logical formLearned from18 sentences.