A (tourist bus) may undergo a hijacking.Logical formLearned from15 sentences. Police may stop buses.Logical formLearned from15 sentences. A (school bus) can be red.Logical formLearned from15 sentences. A car may collide with a (passenger bus).Logical formLearned from15 sentences. A truck may slam into a bus.Logical formLearned from15 sentences. A bus may head to a world-city.Logical formLearned from15 sentences. Persons may travel by bus.Logical formLearned from15 sentences. A string can be constituted-of-or-filled-with (bus bombings).Logical formLearned from15 sentences. A (passenger bus) may explode.Logical formLearned from15 sentences. A bus may be damaged in an explosion.Logical formLearned from15 sentences. (Bus services) may resume.Logical formLearned from15 sentences. A company may operate a bus.Logical formLearned from15 sentences. (Bus accidents) can be fatal.Logical formLearned from15 sentences. A vehicle can be (passenger bus).Logical formLearned from15 sentences. Some soldiers can be in (bus ambush).Logical formLearned from15 sentences.