83838
As a series of migration to the south throughout the history , the regional languages of the south , including Gan , Xiang , Wu , Min , Yue and Hakka often show traces of Old Chinese or Middle Chinese .
 Gan, Xiang, Wu, Min, Yue, Hakka
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gan, Xiang, Wu, Min, Yue, Hakka