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Historians sometimes designate him " Callias III " to distinguish him from his grandfather Callias II and from his grandfather 's grandfather Callias ( " Callias I " ) .
 Callias III, Callias, Callias, Callias
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Callias III, Callias, Callias, Callias