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Generalissimo Chiang Kai-shek deployed his best army to defend Shanghai , but , after three months of fighting , Shanghai fell .
 Chiang Kai-shek, Shanghai, Shanghai
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chiang Kai-shek, Shanghai, Shanghai