A bus may tumble.Logical formLearned from40 sentences. (Bus drivers) can be in a world-city.Logical formLearned from40 sentences. A (bus station) can be abandoned.Logical formLearned from40 sentences. A bus can be stopped.Logical formLearned from40 sentences. A bomb may explode at a (bus stop).Logical formLearned from40 sentences. (Bus accidents) can be common.Logical formLearned from40 sentences. A (bomb blast) can be on a bus.Logical formLearned from40 sentences. A bus may veer_off a road.Logical formLearned from40 sentences. A (bus station) may pertain-to a road.Logical formLearned from39 sentences. (Bus services) can be scheduled.Logical formLearned from39 sentences. A train may hit a bus.Logical formLearned from39 sentences. A male may catch a bus.Logical formLearned from39 sentences. A central (bus station) can be in a world-city.Logical formLearned from39 sentences. Gunmen may attack a bus.Logical formLearned from39 sentences. Brakes may pertain-to a bus.Logical formLearned from39 sentences.