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The venue of Atletico 's first league game , scheduled for Sunday , is still in doubt with the Real Madrid 's Santiago Bernabeu a distinct possibility .
 Atletico, Santiago Bernabeu, Real Madrid
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Atletico, Santiago Bernabeu, Real Madrid