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Rish primarily announced games when O'Brien was away on assignment for ESPN .
 person: Rish; person: O'Brien; organization: ESPN
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: Rish, O'Brien, ESPN 
Answer:
 person: Rish; person: O'Brien; organization: ESPN