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Dai 's most famous book , " Ren A Ren " ( People , People ) , was translated into German and English , he said .
 Ren A Ren, German, People , People, Dai, English
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Ren A Ren, German, People , People, Dai, English