68778
Meanwhile , in 1983 , he had begun the writing and drawing of a comic strip , " The Angriest Dog in the World " , which featured unchanging graphics of a tethered dog that was so angry that it could not move , alongside cryptic philosophical references .
 None
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:  
Answer:
 None