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Keane was once considered the second-most powerful politician in the city , exceeded only by his close personal ally Mayor Richard J. Daley .
 person: Richard J. Daley
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: Richard J. Daley 
Answer:
 person: Richard J. Daley