A roar may pertain-to a train.Logical formLearned from30 sentences. A roar can be almighty.Logical formLearned from30 sentences. A roar may pertain-to a city.Logical formLearned from29 sentences. A roar may begin.Logical formLearned from29 sentences. A roar can be quiet.Logical formLearned from29 sentences. Persons may hear a roar.Logical formLearned from29 sentences. A roar may pertain-to a greasepaint.Logical formLearned from29 sentences. A roar may pertain-to an ocean.Logical formLearned from28 sentences. A roar can be constituted-of-or-filled-with thunder.Logical formLearned from27 sentences. A roar can be faint.Logical formLearned from27 sentences. A person may hear a roar of a crowd.Logical formLearned from27 sentences. A roar can be resounding.Logical formLearned from26 sentences. A roar may pertain-to guns.Logical formLearned from26 sentences. A roar of engines can be a purr.Logical formLearned from26 sentences. A roar can be fierce.Logical formLearned from26 sentences.