A (bus depot) can be in a world-city.Logical formLearned from16 sentences. A bus may travel a stretch of a highway.Logical formLearned from16 sentences. Thousands can be constituted-of-or-filled-with bus.Logical formLearned from16 sentences. An attack can be at a (bus station).Logical formLearned from16 sentences. A (bus bombing) can be an attack.Logical formLearned from16 sentences. A bus may collide with some vehicle.Logical formLearned from16 sentences. (School bus) can be from a hospital.Logical formLearned from16 sentences. Persons may crowd into buses.Logical formLearned from16 sentences. A (suicide bomber) may board a bus.Logical formLearned from16 sentences. A (passenger bus) can be empty.Logical formLearned from16 sentences. Buses may carry protesters.Logical formLearned from16 sentences. A bus may carry tourists.Logical formLearned from16 sentences. A gunman may hijack a bus.Logical formLearned from16 sentences. Some passengers may be killed in a (bus bombing).Logical formLearned from16 sentences. A passenger may sit behind a (bus driver).Logical formLearned from16 sentences.