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Gregory ( Greg ) Ballard ( born January 29 , 1955 , in Los Angeles , California ) is a retired American professional basketball player .
 person: Greg; person: Ballard; location: Los Angeles
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: Greg, Ballard, Los Angeles 
Answer:
 person: Greg; person: Ballard; location: Los Angeles