A cabin can be rigid.Logical formLearned from5 sentences. A mind-set can be rigid.Logical formLearned from5 sentences. A cockpit can be rigid.Logical formLearned from5 sentences. A classroom can be rigid.Logical formLearned from5 sentences. Strategies can be rigid.Logical formLearned from5 sentences. Solutions can be rigid.Logical formLearned from5 sentences. (Plastic baby bottles) can be rigid.Logical formLearned from5 sentences. A configuration can be rigid.Logical formLearned from5 sentences. A scientific analysis can be rigid.Logical formLearned from5 sentences. (Industry safety guidelines) can be rigid.Logical formLearned from5 sentences. An adherent can be rigid.Logical formLearned from5 sentences. A rationalism can be rigid.Logical formLearned from5 sentences. (Repayment terms) can be rigid.Logical formLearned from5 sentences. A company can be rigid.Logical formLearned from5 sentences. Politicians can be rigid.Logical formLearned from5 sentences.