A rat-tat-tat of (machine guns) can be a roar of compressors.Logical formLearned from2 sentences. A teen-ager may hear a roar of a (f-16 jet).Logical formLearned from2 sentences. A roar can be eternal.Logical formLearned from2 sentences. A buzz may grow to a roar.Logical formLearned from2 sentences. A roar can be exaggerated.Logical formLearned from2 sentences. A roar may pertain-to a bomb.Logical formLearned from2 sentences. A roar can be constituted-of-or-filled-with whistles.Logical formLearned from2 sentences. A tiger may lose a roar.Logical formLearned from2 sentences. A room may echo with a roar of a (demonstration outside).Logical formLearned from2 sentences. A roar may pertain-to a (lawn mower).Logical formLearned from2 sentences. A roar can be popular.Logical formLearned from2 sentences. A series of roars may roll across a plain.Logical formLearned from2 sentences. A roar can be extended.Logical formLearned from2 sentences. A roar can be constituted-of-or-filled-with guitar.Logical formLearned from2 sentences. Trenches may shake with a roar of artillery.Logical formLearned from2 sentences.