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He resumed as bench coach in July 2009 after Jim Riggleman was appointed acting manager after Manny Acta was fired .
 Jim Riggleman, Manny Acta
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jim Riggleman, Manny Acta