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Xinghua Township ( ) is a township of Dangchang County in southeastern Gansu province , China , located northeast of the county seat .
 Dangchang County, Gansu
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dangchang County, Gansu