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McDull , Prince de la Bun ( 麥兜菠蘿油王子 , McDull , the prince of the pineapple bun with butter ) is a 2004 animated Hong Kong film directed by Yuen Toe .
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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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