4501
He won stage three in a mountain-top finish ahead of Alberto Contador , taking the overall lead of the race which he held until the final time-trial ; he finished the tour in seventh place .
 person: Alberto Contador
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: Alberto Contador