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Kenjiro Shoda ( Japanese : 正田 建次郎 Shōda Kenjirō ; February 25 , 1902 – March 3 , 1977 ) was a Japanese mathematician .
 Kenjiro Shoda
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kenjiro Shoda