A political opposition can be stiff.Logical formLearned from76 sentences. A task can be stiff.Logical formLearned from74 sentences. Cocks can be stiff.Logical formLearned from73 sentences. A response can be stiff.Logical formLearned from73 sentences. Taxes can be stiff.Logical formLearned from72 sentences. Bristles can be stiff.Logical formLearned from71 sentences. A flex can be stiff.Logical formLearned from70 sentences. Fingers can be stiff.Logical formLearned from70 sentences. A formality can be stiff.Logical formLearned from70 sentences. A gait can be stiff.Logical formLearned from70 sentences. Requirements can be stiff.Logical formLearned from68 sentences. Laws can be stiff.Logical formLearned from68 sentences. A rod can be stiff.Logical formLearned from67 sentences. A tax can be stiff.Logical formLearned from67 sentences. A nod can be stiff.Logical formLearned from67 sentences.