(Rock art) may undergo concentrations.Logical formLearned from12 sentences. Rocks may be dated.Logical formLearned from12 sentences. A career can be on rocks.Logical formLearned from12 sentences. Rocks may be seen.Logical formLearned from12 sentences. Rocks may undergo a folding.Logical formLearned from12 sentences. Rocks may contain fossils.Logical formLearned from12 sentences. Metamorphic rocks can be crystalline.Logical formLearned from12 sentences. A corner can be constituted-of-or-filled-with rock.Logical formLearned from12 sentences. Rocks can be outlying.Logical formLearned from12 sentences. A rock can be at sites.Logical formLearned from12 sentences. A rock can be saturated.Logical formLearned from12 sentences. A rock can be stable.Logical formLearned from12 sentences. A rock can be high-voltage.Logical formLearned from12 sentences. Minerals can be in rocks.Logical formLearned from12 sentences. A (punk rock) can be loud.Logical formLearned from12 sentences.