Some explosions can be on board.Logical formLearned from12 sentences. An explosion can be (demolition blast).Logical formLearned from12 sentences. An explosion can be in an interior.Logical formLearned from12 sentences. A (news agency) may report an explosion.Logical formLearned from12 sentences. Explosions can be in a city.Logical formLearned from12 sentences. A (gas explosion) may be ravaged.Logical formLearned from12 sentences. A fire may set_off a series of explosions.Logical formLearned from12 sentences. A virus may undergo an explosion.Logical formLearned from12 sentences. A (roadside bomb explosion) can be in a world-city.Logical formLearned from12 sentences. A site may pertain-to a (train explosion).Logical formLearned from12 sentences. Explosions can be on some trains.Logical formLearned from12 sentences. A wave of explosions may kill some persons.Logical formLearned from12 sentences. An explosion can be in a (heating system).Logical formLearned from12 sentences. A motorcade may miss an explosion.Logical formLearned from12 sentences. A response can be after an explosion.Logical formLearned from12 sentences.