A head can be with a rock.Logical formLearned from98 sentences. A rock can be weathered.Logical formLearned from98 sentences. Persons can be a rock.Logical formLearned from98 sentences. Rock may undergo a collection.Logical formLearned from97 sentences. (Surf rock songs) can be about cars.Logical formLearned from97 sentences. (Surf rock songs) can be at a peak.Logical formLearned from97 sentences. A (rock group) can be popular.Logical formLearned from97 sentences. Persons can be (rock band).Logical formLearned from97 sentences. Rocks may pertain-to a company.Logical formLearned from96 sentences. A bag can be constituted-of-or-filled-with rocks.Logical formLearned from96 sentences. A person may play rock.Logical formLearned from96 sentences. A rock may be formed.Logical formLearned from96 sentences. A rock may pertain-to a family.Logical formLearned from95 sentences. A rock can be dense.Logical formLearned from95 sentences. A (rock concert) may pertain-to a male.Logical formLearned from95 sentences.