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On September 28 , 2013 , the team secured home field advantage throughout the American League playoffs when their closest competition , the Oakland Athletics , lost .
 organization: American League; organization: Oakland Athletics
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: American League; organization: Oakland Athletics