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Ding ware ( Chinese character : 定瓷 ; Wade-Giles : Ting ; Pinyin : Dìngcí ) was produced in the prefecture of Dingzhou , starting from the end of the Tang Dynasty and finishing during the Jin dynasty of northern China .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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