A roar may pertain-to a generator.Logical formLearned from5 sentences. A roar may pertain-to (boat engines).Logical formLearned from5 sentences. A roar may pertain-to a helicopter.Logical formLearned from5 sentences. A person may hear a roar of a plane.Logical formLearned from5 sentences. A roar can be constituted-of-or-filled-with rubble.Logical formLearned from5 sentences. Completion may reduce a portion of a roar to a whisper.Logical formLearned from5 sentences. A roar of a crowd may shout.Logical formLearned from5 sentences. A roar can be hellish.Logical formLearned from5 sentences. Roars may roar.Logical formLearned from5 sentences. A female may say to roars of laughter.Logical formLearned from5 sentences. Roars can be constituted-of-or-filled-with tractor-trailers.Logical formLearned from5 sentences. A roar can be leonine.Logical formLearned from5 sentences. A roar can be recorded.Logical formLearned from5 sentences. A roar of engines may remind a person that something-is-the-case.Logical formLearned from5 sentences. A roar can be constituted-of-or-filled-with dynamite.Logical formLearned from5 sentences.