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Eystein Glumra ( the Clatterer ) , also called Eystein Ivarsson ( born ca. 830 in Nord-Trøndelag , Norway ) was Jarl ( Earl ) of Oppland and Hedmark in Norway .
 Eystein Glumra, Eystein, Nord-Trøndelag, Norway, Oppland, Hedmark, Norway
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Eystein Glumra, Eystein, Nord-Trøndelag, Norway, Oppland, Hedmark, Norway