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Pre-Race Favourites Two time defending champion , Alberto Contador announced that he would not be taking part in the 2010 Tour .
 person: Alberto Contador
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Alberto Contador 
Answer:
 person: Alberto Contador