258685
History The expressway was opened on December 29 , 2008 and was created to reduce the time to travel from Ulsan to Busan from 57 minutes to 30 minutes .
 Ulsan, Busan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ulsan, Busan