Explanation: Broken utensil: Crude evil; Yun: weeding; years: In Valley maturity. Farming is not careful, will affect the year's harvest. Source: "Xunzi Tianlun": "broken utensil injury Jia Geng, Yun Nou lost weedy. Han Han Baby" Hanshiwaizhuan "Volume II:" dry farming hurt crops, dry Yun injury years old. "