A (methane gas explosion) can be powerful.Logical formLearned from12 sentences. A (methane gas explosion) can be at a mine.Logical formLearned from12 sentences. A country may be blamed for an explosion.Logical formLearned from12 sentences. An explosion may come from a car.Logical formLearned from12 sentences. An explosion may kill some Americans.Logical formLearned from12 sentences. A force of an explosion may be hurled.Logical formLearned from12 sentences. An attack may follow an explosion.Logical formLearned from12 sentences. A political-leader may authorize some (test explosions).Logical formLearned from12 sentences. An explosion may remain a mystery.Logical formLearned from12 sentences. An explosion can be in (drug use).Logical formLearned from12 sentences. Explosions of fire may rock front lines.Logical formLearned from12 sentences. (Plant explosion) can be in a country.Logical formLearned from12 sentences. Some explosions may be noted.Logical formLearned from12 sentences. Some explosions may erupt.Logical formLearned from12 sentences. (Capital and explosions) may be heard.Logical formLearned from12 sentences.