A rock may come_down on a roof of a car.Logical formLearned from10 sentences. A rock can be clear.Logical formLearned from10 sentences. Persons may put a rock.Logical formLearned from10 sentences. A stampede can be at a (rock concert).Logical formLearned from10 sentences. A revue can be constituted-of-or-filled-with rock.Logical formLearned from10 sentences. A (rock crystal) can be transparent.Logical formLearned from10 sentences. Oil may leak through (rock formations).Logical formLearned from10 sentences. Rocks may cover homes.Logical formLearned from10 sentences. (Rock music) may mingle with carols.Logical formLearned from10 sentences. A rock can be colourful.Logical formLearned from10 sentences. Tremors may trigger landslides of rocks.Logical formLearned from10 sentences. A prehistoric (rock art) may be preserved for millennia.Logical formLearned from10 sentences. A (rock star) can be welcome.Logical formLearned from10 sentences. A male may be hited on a head by a rock.Logical formLearned from10 sentences. A career can be in (rock music).Logical formLearned from10 sentences.