A steampipe of a steamer may keep_up a roar that something-is-the-case.Logical formLearned from1 sentences. A (steam pipe) may keep_up a roar.Logical formLearned from1 sentences. A roar of a surf may sound.Logical formLearned from1 sentences. A signal can be for a roar.Logical formLearned from1 sentences. A roar can be instantaneous.Logical formLearned from1 sentences. A roar can be from artillery.Logical formLearned from1 sentences. Steps may be arrested by a roar of an avalanche.Logical formLearned from1 sentences. A roar may proclaim a pitched battle.Logical formLearned from1 sentences. A roar may pertain-to dogs.Logical formLearned from1 sentences. A performance may evoke a roar of appreciation from a crowd.Logical formLearned from1 sentences. A sound can be a roar of (cash registers).Logical formLearned from1 sentences. Pines may begin a roar.Logical formLearned from1 sentences. A roar can be uneasy.Logical formLearned from1 sentences. A roar can be alien.Logical formLearned from1 sentences. A train may pass_by in a roar of fate.Logical formLearned from1 sentences.