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He , who had joined William of Orange in 1688 , and fought to defend Londonderry , promptly had his Irish title promoted to Viscount Strabane .
 person: William of Orange
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: William of Orange 
Answer:
 person: William of Orange