54049
He was paired with Alain Prost , ( who was also the reigning World Champion ) , and who took over as the team 's lead driver .
 person: Alain Prost
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: Alain Prost 
Answer:
 person: Alain Prost