118585
About 40 % of the population lives in Ulaanbaatar , and in 2002 a further 23 % lived in Darkhan , Erdenet , the aimag centers and sum-level permanent settlements .
 Ulaanbaatar, Darkhan, Erdenet
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:
 Ulaanbaatar, Darkhan, Erdenet