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Within the park on the slopes of Mount Olympus is a U-shaped outcrop , Yanartaş , above Cirali , from which methane gas , naturally perpetually escaping from below through the rocks , feeds eternal flames .
 Mount Olympus, Yanartaş, Cirali
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mount Olympus, Yanartaş, Cirali