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Last year , US corporations occupied 80 % of Tianjin City ' s foreign merchant investment , with operating volume occupying 32 % , but profits occupying 45 % .
 US, Tianjin City, US corporations, foreign merchant
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 US, Tianjin City, US corporations, foreign merchant