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Career He appeared in many D. W. Griffith films , notably The Birth of a Nation ( 1915 ) , where he appeared as Gus , an African American , in blackface make-up , and Intolerance ( 1916 ) .
 D. W. Griffith
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 D. W. Griffith