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The Ainu were becoming increasingly marginalized on their own land - over a period of only 36 years , the Ainu went from being a relatively isolated group of people to having their land , language , religion and customs assimilated into those of the Japanese .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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