211809
Jeju Smart Grid Test-bed will become the world ’s largest Smart Grid community that allows the testing of the most advanced Smart Grid technologies and R&D results , as well as the development of business models .
 Jeju
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jeju