Buses can be expensive.Logical formLearned from27 sentences. Men can be on a bus.Logical formLearned from27 sentences. Buses can be crowded.Logical formLearned from27 sentences. A back may pertain-to a (school bus).Logical formLearned from27 sentences. A bus may wait.Logical formLearned from27 sentences. (School buses) may pertain-to a country.Logical formLearned from27 sentences. An owner may pertain-to a (bus company).Logical formLearned from27 sentences. A male may lose control of a bus.Logical formLearned from27 sentences. Some buses may be destroyed.Logical formLearned from27 sentences. An engine may pertain-to a bus.Logical formLearned from27 sentences. A (bus company) may pertain-to a us-state.Logical formLearned from27 sentences. A bus may race across a curb.Logical formLearned from27 sentences. A route may pertain-to a bus.Logical formLearned from27 sentences. Brakes can be on a bus.Logical formLearned from27 sentences. A female may wait at a (bus stop).Logical formLearned from27 sentences.