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Chantal Strasser ( born March 21 , 1978 in Zürich ) is a retired female freestyle swimmer from Switzerland .
 Chantal Strasser, Zürich, Switzerland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chantal Strasser, Zürich, Switzerland