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Lines Chikatetsu-Akatsuka Station is served by the Tokyo Metro Yūrakuchō Line ( station Y-03 ) and Tokyo Metro Fukutoshin Line ( station F-03 ) , and is located 3.6 km from the terminus of the two lines at .
 Tokyo Metro, Tokyo Metro
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tokyo Metro, Tokyo Metro