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Following the 2001 general election he became the PPS to Prime Minister Tony Blair .
 organization: PPS; person: Tony Blair
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: PPS, Tony Blair 
Answer:
 organization: PPS; person: Tony Blair