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The town of Kırıkkale is located on the Ankara - Kayseri railway near the Kızıl River in central Turkey .
 Kırıkkale, Ankara, Kayseri, Turkey
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kırıkkale, Ankara, Kayseri, Turkey