If the rules of this filial piety trial were cleared up from the beginning, it was not difficult to find that the method of clearance was very simple.
The key to passing the trial was: to do one’s filial duty. If the act of doing one’s filial piety is the only requirement, children giving two folds gift to the parents could be considered as doing one’s filial duty, it was quite probable that many people’s first reaction was to make a relationship chain, the parents correspond to the children, and the children correspond to the children’s children, and so on, forming a chain. However, as a matter of fact, this was also the correct solution to pass this trial; at most, only the first person who can’t perform the filial duty, and considering the stipulation of ‘there are three ways to be unfilial, having no sons is the worst’, mostly the last person in the chain could be excluded. Therefore, at the expense of two people, the remaining twelve people could all pass the trial.
