Rules can be rigid.Logical formLearned from965 sentences. A structure can be rigid.Logical formLearned from746 sentences. A system can be rigid.Logical formLearned from670 sentences. An adherence can be rigid.Logical formLearned from389 sentences. A control can be rigid.Logical formLearned from357 sentences. Standards can be rigid.Logical formLearned from355 sentences. A schedule can be rigid.Logical formLearned from274 sentences. A rule can be rigid.Logical formLearned from268 sentences. A discipline can be rigid.Logical formLearned from256 sentences. A hierarchy can be rigid.Logical formLearned from254 sentences. Structures can be rigid.Logical formLearned from250 sentences. An approach can be rigid.Logical formLearned from245 sentences. A male can be rigid.Logical formLearned from228 sentences. A set can be rigid.Logical formLearned from228 sentences. A body can be rigid.Logical formLearned from225 sentences.