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As an ardent activist for the Armenian cause Sapah-Gulian joined and worked on behalf of the Hunchakian in 1894 .
 Sapah-Gulian, Hunchakian
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sapah-Gulian, Hunchakian