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The following year , he released " Duets " , which featured collaborations with 15 artists , including Tammy Wynette and RuPaul .
 person: Tammy Wynette; person: RuPaul
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Tammy Wynette; person: RuPaul