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In 1953 , Healy joined the split in the Fourth International instigated by James P. Cannon and was soon nominal leader of the International Committee of the Fourth International .
 Healy, Fourth, James P. Cannon, International Committee of the Fourth International
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Healy, Fourth, James P. Cannon, International Committee of the Fourth International