A graphite can be stiff.Logical formLearned from55 sentences. Shoulders can be stiff.Logical formLearned from54 sentences. An action can be stiff.Logical formLearned from54 sentences. A frame can be stiff.Logical formLearned from53 sentences. A prick can be stiff.Logical formLearned from53 sentences. Rules can be stiff.Logical formLearned from53 sentences. A leg can be stiff.Logical formLearned from52 sentences. Breezes can be stiff.Logical formLearned from52 sentences. A side can be stiff.Logical formLearned from51 sentences. A manner can be stiff.Logical formLearned from51 sentences. Ones can be stiff.Logical formLearned from50 sentences. A male may go stiff.Logical formLearned from50 sentences. A knee can be stiff.Logical formLearned from50 sentences. A (prison sentence) can be stiff.Logical formLearned from49 sentences. Feathers can be stiff.Logical formLearned from48 sentences.