Some miners may be trapped by an explosion.Logical formLearned from18 sentences. Gas may undergo an explosion.Logical formLearned from18 sentences. Bombs may undergo explosions.Logical formLearned from18 sentences. Persons may have some explosions.Logical formLearned from18 sentences. An explosion can be at an (oil refinery).Logical formLearned from18 sentences. An explosion may occur around some pm.Logical formLearned from18 sentences. An explosion can be at a (train station).Logical formLearned from18 sentences. A country may condemn explosions.Logical formLearned from18 sentences. An explosion can be a result of an attack.Logical formLearned from18 sentences. Some other persons may be injured in an explosion.Logical formLearned from18 sentences. Explosions may be caused by bombs.Logical formLearned from18 sentences. A world-city may be rocked by explosions.Logical formLearned from18 sentences. Days can be before an explosion.Logical formLearned from18 sentences. A motive can be behind an explosion.Logical formLearned from18 sentences. A (fuel tanker) may undergo an explosion.Logical formLearned from18 sentences.