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Colin Thomas Johnson ( born 21 August 1938 ) , better known by his nom de plume Mudrooroo , is a novelist , poet , essayist and playwright .
 person: Mudrooroo
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: Mudrooroo 
Answer:
 person: Mudrooroo