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He is the Chairman of the John D. and Catherine T. MacArthur Foundation and Vice Chairman of the Good Samaritan Hospital of Los Angeles .
 John D. and Catherine T. MacArthur Foundation, Los Angeles
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 John D. and Catherine T. MacArthur Foundation, Los Angeles