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The exhibit soft-opened on February 4 , 2012 , with the premise of participants being called up to fight the bad habits ( formerly personified as villains ) , but following the backlash against activist groups ( doctors , body-image advocates , and so on ) , it closed down on February 23 , 2012 .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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