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The Aberdeen Donside by-election , 2013 is a by-election that is due to be held for the Scottish Parliament constituency of Aberdeen Donside later this year , following the death of the constituency 's MSP , Brian Adam , following a battle with cancer .
 Scottish, Brian Adam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Scottish, Brian Adam