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The Karam of the New Guinea Highlands identify bats and flying birds as one classification ( yaket ) , and the Dwarf Cassowary , an extremely large wingless , flightless bird as another classification ( kobtiy ) .
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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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