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Allan Holtz is a comic strip historian who researches and writes about newspaper comics for his Stripper 's Guide blog , launched in 2005 .
 person: Allan Holtz
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: Allan Holtz 
Answer:
 person: Allan Holtz