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In 2004 and 2005 , thousands of Hmong fled from the jungles of Laos to a temporary refugee camp in the Thai province of Phetchabun .
 Laos, Phetchabun
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Laos, Phetchabun