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Up to 100,000 tonnes of copper held in Shanghai bonded warehouses , confounding the world market as to its source and ultimate fate , probably belongs to China 's strategic state reserve , industry sources said on Friday .
 Shanghai, China
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Shanghai, China