Products can be rigid.Logical formLearned from7 sentences. An assumption can be rigid.Logical formLearned from7 sentences. Orthotics can be rigid.Logical formLearned from7 sentences. A lock can be rigid.Logical formLearned from7 sentences. Hierarchical structures can be rigid.Logical formLearned from7 sentences. A model can be rigid.Logical formLearned from7 sentences. Insulations can be rigid.Logical formLearned from7 sentences. A definition can be rigid.Logical formLearned from7 sentences. A compartmentalization can be rigid.Logical formLearned from7 sentences. A (world view) can be rigid.Logical formLearned from7 sentences. Muscles may go rigid.Logical formLearned from7 sentences. Teachings can be rigid.Logical formLearned from7 sentences. (Pay structures) can be rigid.Logical formLearned from7 sentences. A procedure can be rigid.Logical formLearned from7 sentences. An islamic state can be rigid.Logical formLearned from7 sentences.