122150
Æthelred " Mucel " , Ealdorman of the Gaini , was an Anglo-Saxon noble from Mercia .
 location: Mercia
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: Mercia 
Answer:
 location: Mercia