20587
History When the People 's Republic was founded in 1949 , the telecommunications systems and facilities in China first established by the Qing and Republican ITA and Ministry of Posts and Communications had been seriously damaged from over thirty years of on and off war between warlords , Japan , and the two sides of the Chinese Civil War .
 People, Republican, Ministry, Communications
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 People, Republican, Ministry, Communications