A concert can be by (rock band).Logical formLearned from12 sentences. Alternative rock may undergo a rise.Logical formLearned from12 sentences. Rock may undergo a creation.Logical formLearned from12 sentences. A (roll era) may pertain-to a rock.Logical formLearned from12 sentences. An album can be by (folk rock band).Logical formLearned from12 sentences. A (rock trio) can be heavy.Logical formLearned from12 sentences. A face can be with a rock.Logical formLearned from12 sentences. (Rock groups) can be famous.Logical formLearned from12 sentences. A (punk rock band) can be influential.Logical formLearned from12 sentences. Fossils can be in rocks.Logical formLearned from12 sentences. Rocks can be hazardous.Logical formLearned from12 sentences. A (rock album) can be straightforward.Logical formLearned from12 sentences. An (indie rock band) may be formed in a US-city.Logical formLearned from12 sentences. Rocks may undergo a population.Logical formLearned from12 sentences. A rock may jut.Logical formLearned from12 sentences.