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The Baidu Baike " articles " initially began with " Four Mythical Creatures " ( The " Grass Mud Horse " , " French-Croatian Squid " , " Small Elegant Butterfly " and " Chrysanthemum Silkworms " ) , and were later extended to ten .
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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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