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Forming the easternmost part of the Pontus region , Chaldia was bounded to the north by the Black Sea , to the east by Lazica , the westernmost part of Caucasian Iberia , to the south by Cappadocia and Armenia Minor , and to the west by the western half of Pontus .
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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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