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The Black-headed Parrotbill ( Paradoxornis margaritae ) is a bird species often placed with the Old World babbler s ( family Timaliidae ) or in a distinct family Paradoxornithidae , but it actually seems to belong to the Sylviidae .
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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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