A (train explosion) may occur at (railway station).Logical formLearned from7 sentences. Some explosions may be followed by (warning sirens).Logical formLearned from7 sentences. An (apartment building explosion) may undergo a (death toll).Logical formLearned from7 sentences. A number of others may be injured in an explosion.Logical formLearned from7 sentences. An explosion may damage vehicles.Logical formLearned from7 sentences. Some canadian soldiers may be killed in an explosion.Logical formLearned from7 sentences. An explosion may be heard in some parts of a world-city.Logical formLearned from7 sentences. An explosion may set some cars on fire.Logical formLearned from7 sentences. A fire may be caused by explosions.Logical formLearned from7 sentences. An explosion can be at an international airport.Logical formLearned from7 sentences. Explosions may rip through a (military convoy).Logical formLearned from7 sentences. Some others may injure in an explosion.Logical formLearned from7 sentences. A (car explosion) may occur.Logical formLearned from7 sentences. Dozens can be constituted-of-or-filled-with (bomb explosions).Logical formLearned from7 sentences. Some persons may survive an explosion.Logical formLearned from7 sentences.