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It was bounded by Bithynia on the east , Phrygia on the southeast , Lydia on the south , Aeolis on the southwest , Troad on the west and by the Propontis on the north .
 Bithynia, Phrygia, Lydia, Aeolis, Troad, Propontis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bithynia, Phrygia, Lydia, Aeolis, Troad, Propontis