A person may climb a (rock wall).Logical formLearned from13 sentences. A (rock artist) may pertain-to a century.Logical formLearned from13 sentences. A rock may hit a person.Logical formLearned from13 sentences. Rock can be big.Logical formLearned from13 sentences. A person may know about rock.Logical formLearned from13 sentences. Spires can be constituted-of-or-filled-with rock.Logical formLearned from13 sentences. A (rock singer) may burst to fame.Logical formLearned from13 sentences. A rock can be on a planet.Logical formLearned from13 sentences. Rollers may pertain-to rock.Logical formLearned from13 sentences. Music can be a hard rock.Logical formLearned from13 sentences. A rock can be infectious.Logical formLearned from13 sentences. A section can be constituted-of-or-filled-with rocks.Logical formLearned from13 sentences. A female may look at a rock.Logical formLearned from13 sentences. A person may see rock.Logical formLearned from13 sentences. Rocks can be mixed.Logical formLearned from13 sentences.