500
These are the five relationships of Confucianism, the understanding of which underpine the notion of jen. Along with a familiarity with the five Classics: the Books of History, Rites, Songs and Changes, and the Spring and Autumn Annals, comprise the fundamentals of junzi, or being a gentleman, according to Confucius.
What are the father-son, Ruler-Minister, Husband-Wife, Elder-Younger brother, and Friend-Friend relationships