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Notable contributors have included Cardinals Avery Dulles and Joseph Ratzinger , and Archbishop Donald Wuerl .
 Avery Dulles, Joseph Ratzinger, Donald Wuerl
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Avery Dulles, Joseph Ratzinger, Donald Wuerl