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Zhang favored consolidating power in Sichuan whereas Mao Zedong wanted to continue on to Gansu and Ningxia , to receive aid from the Soviet Union .
 Zhang, Mao Zedong
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Zhang, Mao Zedong