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It is one of the largest living terrestrial members of the order Carnivora , rivaled in size only by its closest relative , the polar bear ( " Ursus maritimus " ) , which is much less variable in size and slightly bigger on average .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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