A landscape can be rigid.Logical formLearned from18 sentences. A social code can be rigid.Logical formLearned from18 sentences. Foundations can be rigid.Logical formLearned from17 sentences. Morals can be rigid.Logical formLearned from17 sentences. Spines can be rigid.Logical formLearned from17 sentences. Rituals can be rigid.Logical formLearned from17 sentences. An arm can be rigid.Logical formLearned from17 sentences. A figure can be rigid.Logical formLearned from17 sentences. Shoulders can be rigid.Logical formLearned from17 sentences. A kind can be rigid.Logical formLearned from17 sentences. An analysis can be rigid.Logical formLearned from17 sentences. Steel can be rigid.Logical formLearned from17 sentences. A mode can be rigid.Logical formLearned from17 sentences. A (command structure) can be rigid.Logical formLearned from17 sentences. A board can be rigid.Logical formLearned from17 sentences.