A casing can be rigid.Logical formLearned from15 sentences. A schema can be rigid.Logical formLearned from15 sentences. Requirements can be rigid.Logical formLearned from15 sentences. A conduit can be rigid.Logical formLearned from15 sentences. Boxes can be rigid.Logical formLearned from15 sentences. Legislation can be rigid.Logical formLearned from15 sentences. A compliance can be rigid.Logical formLearned from15 sentences. A stance can be rigid.Logical formLearned from15 sentences. Shoulders can be rigid.Logical formLearned from15 sentences. Prescriptions can be rigid.Logical formLearned from15 sentences. A conservative can be rigid.Logical formLearned from15 sentences. A rule can be rigid.Logical formLearned from15 sentences. A liner can be rigid.Logical formLearned from15 sentences. An atmosphere can be rigid.Logical formLearned from15 sentences. A neck can be rigid.Logical formLearned from15 sentences.