A bus may fall into a river.Logical formLearned from21 sentences. A bus may collide with a truck.Logical formLearned from21 sentences. A model may show a bus.Logical formLearned from21 sentences. A bus may swerve_off a highway.Logical formLearned from21 sentences. A bus may leave.Logical formLearned from21 sentences. A bus may cross a border.Logical formLearned from21 sentences. A (bus attack) may kill some persons.Logical formLearned from21 sentences. A central (bus station) can be defunct.Logical formLearned from21 sentences. Tires may pertain-to a bus.Logical formLearned from21 sentences. A bomb can be on a bus.Logical formLearned from21 sentences. Buses may ply a route.Logical formLearned from21 sentences. Somebody can be on a bus.Logical formLearned from21 sentences. (Bus service) may resume.Logical formLearned from21 sentences. A bus may travel to a world-city.Logical formLearned from21 sentences. A site may pertain-to a (bus bombing).Logical formLearned from21 sentences.