A metropolitan area can be busy.Logical formLearned from13 sentences. A (rail route) can be busy.Logical formLearned from13 sentences. A (river port) can be busy.Logical formLearned from13 sentences. A moment can be busy.Logical formLearned from13 sentences. A male can be busy with a band.Logical formLearned from13 sentences. A captain can be busy.Logical formLearned from13 sentences. A daily life can be busy.Logical formLearned from13 sentences. A (class schedule) can be busy.Logical formLearned from13 sentences. A (fax machine) can be busy.Logical formLearned from13 sentences. Agencies can be busy.Logical formLearned from13 sentences. A light can be busy.Logical formLearned from13 sentences. Doings can be busy.Logical formLearned from13 sentences. A mouth can be busy.Logical formLearned from13 sentences. A person can be busy as heck.Logical formLearned from13 sentences. Nights can be busy.Logical formLearned from13 sentences.