A rock can be complex.Logical formLearned from14 sentences. (Lava rocks) can be black.Logical formLearned from14 sentences. A rock can be hardened.Logical formLearned from14 sentences. Surfaces may pertain-to rocks.Logical formLearned from14 sentences. An igneous rock can be coarse-grained.Logical formLearned from14 sentences. Rocks can be in a continent.Logical formLearned from14 sentences. A (rock star) can be flamboyant.Logical formLearned from14 sentences. A person may get some rocks.Logical formLearned from14 sentences. A head may hit a rock.Logical formLearned from14 sentences. A male can be a rock of a family.Logical formLearned from14 sentences. A (rock arch) may pertain-to a resort.Logical formLearned from14 sentences. (Waste rock) may be dumped into water by a mine.Logical formLearned from14 sentences. Rocks may be pounded by a sea.Logical formLearned from14 sentences. (Rock music) may blare from loudspeakers.Logical formLearned from14 sentences. An appearance may pertain-to a rock.Logical formLearned from14 sentences.