Some persons may roar approval.Logical formLearned from2 sentences. Military vehicles may roar.Logical formLearned from2 sentences. Some (army trucks) may roar without warn_downing a highway.Logical formLearned from2 sentences. A truck may roar by a crowd.Logical formLearned from2 sentences. A male may roar as some hurricane.Logical formLearned from2 sentences. A world-city may roar to a high.Logical formLearned from2 sentences. An economy may roar with growth.Logical formLearned from2 sentences. (Celebratory gunfire) may roar across a world-city.Logical formLearned from2 sentences. A powerboat may roar over a spot.Logical formLearned from2 sentences. Cataracts may roar into a river.Logical formLearned from2 sentences. A quake may roar through area.Logical formLearned from2 sentences. An (airplane engine) may roar.Logical formLearned from2 sentences. A world-city may roar through a factory.Logical formLearned from2 sentences. A female may roar onto land.Logical formLearned from2 sentences. A semifinalist may roar in a set.Logical formLearned from2 sentences.