300470
He was an authority on British mystery writers , and Irish writers Sean O'Casey and James Joyce .
 person: Sean O'Casey; person: James Joyce
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: Sean O'Casey, James Joyce 
Answer:
 person: Sean O'Casey; person: James Joyce