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Rock Cakes from Harry Potter ( Rock Buns ) {{URL}} via {{USERNAME}}
 Rock Cakes, Harry Potter, Rock Buns
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 Rock Cakes, Harry Potter, Rock Buns