6219
However , as a punishment for betraying his lord , Kark was himself decapitated , and his head reputedly sat on a stake in Munkholmen alongside the earl 's head .
 person: Kark
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:
 person: Kark