Rock may undergo explosions.Logical formLearned from9 sentences. A (test explosion) may expose some residents to radiation.Logical formLearned from9 sentences. An explosion can be exciting.Logical formLearned from9 sentences. A (test explosion) can be on a country.Logical formLearned from9 sentences. An explosion can be on an express train.Logical formLearned from9 sentences. Sensation may undergo an explosion.Logical formLearned from9 sentences. A total of some persons may be injured in an explosion.Logical formLearned from9 sentences. Gases may undergo explosions.Logical formLearned from9 sentences. An explosion may devastate a neighborhood.Logical formLearned from9 sentences. An explosion can be with a ball of fire.Logical formLearned from9 sentences. An explosion may be shown on television.Logical formLearned from9 sentences. Footages of an explosion may show a blast.Logical formLearned from9 sentences. Footages may pertain-to an explosion.Logical formLearned from9 sentences. An (oil rig explosion) may set_off a catastrophe.Logical formLearned from9 sentences. An explosion may burn some workers.Logical formLearned from9 sentences.