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Two years after that debut , his generously illustrated version of Fairy Tales from Hans Christian Andersen ( 1914 ) appeared - a title that benefited significantly from Walker 's editorial involvement in the project - and over the following decade , many other commissions followed .
 person: Hans Christian Andersen; person: Walker
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: Hans Christian Andersen, Walker 
Answer:
 person: Hans Christian Andersen; person: Walker