The four interviewees in the incident were victims, witnesses, rescuers and bystanders. They made the following statements during the investigation: [1] Filial Piety: "Sincerity is not a bystander. " [2] Cheng: "Yi is not a witness. " [3] Dare: "Filial piety is not a rescuer. " [4] Yi: "Cheng is not a witness. " Further investigation revealed that if the statements of the four of them were about the victim False, if true for others. It can be seen that the victims are:. ['Filial Piety.', 'Sincerity.', 'Dare.', 'Righteousness.']