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These can include " shi " ( , historical works ) , " zi " ( , philosophical works belonging to schools of thought other than the Confucian but also including works on agriculture , medicine , mathematics , astronomy , divination , art criticism , and other miscellaneous writings ) and " ji " ( , literary works ) as well as " jing ( Chinese medicine ) " .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None