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In the words of Professor Donald Rayfield : Many of Kalandadze ’s poems on patriotic and romantic themes have been made into popular songs .
 Donald Rayfield, Kalandadze
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Donald Rayfield, Kalandadze