Buildings can be rigid.Logical formLearned from9 sentences. An islamic law can be rigid.Logical formLearned from9 sentences. (Disk drives) can be rigid.Logical formLearned from9 sentences. Islamic rules can be rigid.Logical formLearned from9 sentences. A stream can be rigid.Logical formLearned from9 sentences. An insistence can be rigid.Logical formLearned from9 sentences. Requirements can be rigid.Logical formLearned from9 sentences. An apparatus can be rigid.Logical formLearned from9 sentences. A leg can be rigid.Logical formLearned from8 sentences. A rigid inflatable boat may be powered by an outboard motor.Logical formLearned from8 sentences. A rigid inflatable boat may stow amidships.Logical formLearned from8 sentences. Boats can be rigid.Logical formLearned from8 sentences. A structure can be rigid.Logical formLearned from8 sentences. Origamis can be rigid.Logical formLearned from8 sentences. A hierarchy can be rigid.Logical formLearned from8 sentences.