12370
This section was built in a cut and cover tunnel running parallel to Susaek and Gajwa before connecting with Hongik University and Gongdeok , then diving to terminate deep underground on the west side of Seoul Station .
 Susaek, Gajwa, Hongik University, Gongdeok, Seoul Station
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Susaek, Gajwa, Hongik University, Gongdeok, Seoul Station