6273
As of 2007 the Chinese People 's Liberation Army employed two battalions of horse-mounted border guards in Xinjiang Military District for border patrol work .
 Chinese, People 's Liberation Army, Xinjiang Military District
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chinese, People 's Liberation Army, Xinjiang Military District