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The knockout stage of the 1999 – 2000 UEFA Champions League began on 4 April 2000 and ended with the final at the Stade de France in Saint-Denis on 24 May 2000 .
 Saint-Denis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Saint-Denis