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He became one of the early leaders of a church founded by William Irvine after leaving his business career .
 person: William Irvine
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 Irvine 
Answer:
 person: William Irvine