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When their appeal of the Authorization was denied , Kayano and Kaizawa 's son Koichii ( Kaizawa died in 1992 ) , filed suit against the Hokkaidō Development Bureau .
 Kayano, Kaizawa, Koichii, Kaizawa, Hokkaidō Development Bureau
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kayano, Kaizawa, Koichii, Kaizawa, Hokkaidō Development Bureau