Stems can be rigid.Logical formLearned from64 sentences. Materials can be rigid.Logical formLearned from63 sentences. Walls can be rigid.Logical formLearned from62 sentences. A doctrine can be rigid.Logical formLearned from60 sentences. A sense can be rigid.Logical formLearned from60 sentences. Gas can be rigid.Logical formLearned from60 sentences. Definitions can be rigid.Logical formLearned from60 sentences. A requirement can be rigid.Logical formLearned from59 sentences. A pattern can be rigid.Logical formLearned from59 sentences. A nature can be rigid.Logical formLearned from59 sentences. A (class system) can be rigid.Logical formLearned from59 sentences. A process can be rigid.Logical formLearned from58 sentences. A routine can be rigid.Logical formLearned from57 sentences. Plates can be rigid.Logical formLearned from57 sentences. A diet can be rigid.Logical formLearned from57 sentences.