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After combinated with Huandun Town , Banzhuang Town has a total area of 175.61 square kilometers , and so become the largest town in area in Ganyu County .
 Ganyu County
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ganyu County