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and the Republic of Azerbaijan ( ) ; to the north by the Caspian Sea ; to the northeast by Turkmenistan ( ) ; to the east by Afghanistan ( ) and Pakistan ( ) ; to the south by the Persian Gulf and the Gulf of Oman ; and to the west by Iraq ( ) and Turkey ( ) .
 Republic of Azerbaijan, Caspian Sea, Turkmenistan, Afghanistan, Pakistan, Persian Gulf, Gulf of Oman, Iraq, Turkey
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Republic of Azerbaijan, Caspian Sea, Turkmenistan, Afghanistan, Pakistan, Persian Gulf, Gulf of Oman, Iraq, Turkey