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The Strategeion , a trapezoidal chamber located in the Ancient Agora of Athens , Greece , is known as the meeting room of the ten Strategoi of ancient Athens .
 Athens, Greece, Athens
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Athens, Greece, Athens