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An atgeir , sometimes called a " mail-piercer " or " hewing-spear , " was a type of polearm in use in Viking Age Scandinavia and Norse colonies in the British Isles and Iceland .
 Iceland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Iceland