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Ragnars saga is a sequel of sorts to the Völsunga saga , providing a link between the legendary figures of Sigurd and Brynhild and the historical events of the ninth to eleventh century , as well as prestige to the Norwegian royal house by portraying Sigurd as its ancestor .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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