(Transportation problems) can be serious.Logical formLearned from17 sentences. Projects can be in transportation.Logical formLearned from17 sentences. A means can be constituted-of-or-filled-with public transportation.Logical formLearned from17 sentences. Walkings can be a mode of transportation.Logical formLearned from17 sentences. A transportation can be powered.Logical formLearned from17 sentences. A (transportation system) can be metropolitan.Logical formLearned from17 sentences. Transportation can be on water.Logical formLearned from17 sentences. (Transportation equipment) may undergo a production.Logical formLearned from17 sentences. A natural gas may undergo a transportation.Logical formLearned from17 sentences. Some areas can be constituted-of-or-filled-with transportation.Logical formLearned from17 sentences. Persons may offer transportation.Logical formLearned from17 sentences. A transportation can be in commerce.Logical formLearned from17 sentences. Systems can be constituted-of-or-filled-with transportation.Logical formLearned from17 sentences. A safe mode can be constituted-of-or-filled-with transportation.Logical formLearned from17 sentences. A transportation can be underground.Logical formLearned from17 sentences.