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He began his music career as pianist and soul singer signed to Dial Records by Buddy Killen in 1966 .
 organization: Dial Records; person: Buddy Killen
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: Dial Records, Buddy Killen 
Answer:
 organization: Dial Records; person: Buddy Killen