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At first , he was in Nagasaki , then he transferred to Edo ( now Tokyo ) as a senior lecturer in Toku School for 17 years , invited by Ando Seian and Tokugawa Mitsukuni .
 Edo, Tokyo, Tokugawa Mitsukuni
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Edo, Tokyo, Tokugawa Mitsukuni