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He has also held a number of important positions in the party ever since Sonia Gandhi took over the presidency of the party .
 person: Sonia Gandhi
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: Sonia Gandhi 
Answer:
 person: Sonia Gandhi