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Professional Career After graduating in 2000 , Nelson began working for SportsTicker , a now defunct sports news service , that was the official statistician of Minor League Baseball .
 organization: Minor League Baseball
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: Minor League Baseball 
Answer:
 organization: Minor League Baseball