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Kurt Freund hypothesized that such reports might reflect the desire of some trans women to portray themselves as " typically feminine " or , alternatively , might reflect their erotic interest in the validation provided by male partners , rather than representing a genuine change in preference .
 Kurt Freund
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Kurt Freund