Trains may leave a world-city.Logical formLearned from20 sentences. A train may go to a world-city.Logical formLearned from20 sentences. A (train wreck) may pertain-to a magnitude.Logical formLearned from20 sentences. Train can be after train.Logical formLearned from20 sentences. Trains may crash.Logical formLearned from20 sentences. (Train stations) can be suburban.Logical formLearned from20 sentences. Persons can be a train.Logical formLearned from20 sentences. A (train crash) can be in a US-city.Logical formLearned from20 sentences. A person may drive a train.Logical formLearned from20 sentences. A (commuter train crash) may pertain-to a US-city.Logical formLearned from20 sentences. A train may make a trip.Logical formLearned from20 sentences. A train may near a stop.Logical formLearned from20 sentences. A train may be sell_outed.Logical formLearned from20 sentences. A train can be forward.Logical formLearned from20 sentences. Trains may be booked.Logical formLearned from20 sentences.