This is a simulated examination question for the ancient imperial examination system. The teacher creates the questions, and the students compose their answers, which are then corrected and commented on by the teacher. The examination questions are derived from the Four Books and Five Classics, and the students are expected to write their essays in the specific format and word count requirements. 

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The teacher who graded this particular assignment is Zheng Yongjian. He is the cousin of Zheng Yongxi and a man of profound learning. He has been the master at the Ming-Chih Collage(明志書院) for over thirty years. This assignment contains three types of handwriting: the student's regular script answers, Zheng Yongjian's underlining and annotations, and the collection title by Zheng Jiangquan.