200577
The United Nations Command ( UNC ) is the unified command structure for the multinational military forces supporting the Republic of Korea ( South Korea or ROK ) during and after the Korean War .
 Nations, Republic of Korea, Korea, ROK
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nations, Republic of Korea, Korea, ROK