A remainder may pertain-to a train.Logical formLearned from23 sentences. Security can be on trains.Logical formLearned from23 sentences. A (train station) may pertain-to the world.Logical formLearned from23 sentences. Passengers can be on some trains.Logical formLearned from23 sentences. Train can be in a country.Logical formLearned from22 sentences. Some trains may be diverted.Logical formLearned from22 sentences. A (suspension train) can be magnetic.Logical formLearned from22 sentences. Some persons can be on a train.Logical formLearned from22 sentences. Trains may operate on a line.Logical formLearned from22 sentences. A train may collide with some train.Logical formLearned from22 sentences. (Suburban trains) may pertain-to a world-city.Logical formLearned from22 sentences. A fleet can be constituted-of-or-filled-with some trains.Logical formLearned from22 sentences. A (bomb attack) can be on a (commuter train).Logical formLearned from22 sentences. Some train may be derailed.Logical formLearned from22 sentences. Trains can be suburban.Logical formLearned from22 sentences.