The third son tries to help his father-in-law prepare for the exam, but he is unsuccessful. The mother of the third son, however, is kind enough to let him know that he is welcome to come to her house if he wants to discuss the exam with her husband. The father of the second son also agrees to let his son come to his house. The son, who is named linjin, tells his mother that he has come to study at the house of his uncle, liu, and that he will be able to pass the exam the next day