Jelaskan Eup ("Town"; 읍; ) dari Babagian administratif Koréa Kidul dalam bahasa sunda

Along with "myeon", an "eup" is one of the divisions of a county ("gun"), and of some cities ("si") with a population of less than 500,000. The main town or towns in a county—or the secondary town or towns within a city's territory—are designated as "eup"s. Towns are subdivided into villages ("ri"). In order to form an eup, the minimum population required is