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The group demanded Wang 's release and said his detention was a dangerous signal China was returning to its Cultural Revolution days .
 person: Wang; else: Cultural Revolution; location: China
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 person: Wang; else: Cultural Revolution; location: China