A crust can be rigid.Logical formLearned from27 sentences. A position can be rigid.Logical formLearned from27 sentences. Roles can be rigid.Logical formLearned from27 sentences. A prescription can be rigid.Logical formLearned from27 sentences. An etiquette can be rigid.Logical formLearned from27 sentences. A regimen can be rigid.Logical formLearned from27 sentences. Elements can be rigid.Logical formLearned from27 sentences. A type can be rigid.Logical formLearned from27 sentences. An inflatable boat can be rigid.Logical formLearned from27 sentences. A disciplinarian can be rigid.Logical formLearned from27 sentences. A (state control) can be rigid.Logical formLearned from27 sentences. Timetables can be rigid.Logical formLearned from26 sentences. A face can be rigid.Logical formLearned from26 sentences. A life can be rigid.Logical formLearned from26 sentences. Muscles can be rigid.Logical formLearned from26 sentences.