Explosions may rip a front of a submarine.Logical formLearned from20 sentences. Explosions may mark an end of international law.Logical formLearned from20 sentences. An explosion may injure a person.Logical formLearned from20 sentences. A country may set_off an explosion.Logical formLearned from20 sentences. An explosion can be at a (government building).Logical formLearned from20 sentences. Some explosions may rock a (city center).Logical formLearned from20 sentences. Explosions can be at sites.Logical formLearned from20 sentences. Persons may be wounded in an explosion.Logical formLearned from20 sentences. A (bomb explosion) can be remote-controlled.Logical formLearned from20 sentences. An explosion may be caused by gas.Logical formLearned from20 sentences. A (coal mine explosion) may kill some persons.Logical formLearned from20 sentences. An explosion may occur in a building.Logical formLearned from20 sentences. An explosion may trigger a fire.Logical formLearned from20 sentences. An explosion can be at a headquarters.Logical formLearned from20 sentences. An explosion can be violent.Logical formLearned from20 sentences.