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In 1951 , he completed his last neoclassical work , the opera " The Rake 's Progress " to a libretto by W. H. Auden and Chester Kallman based on the etchings of William Hogarth .
 person: W. H. Auden; person: Chester Kallman; person: William Hogarth
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: W. H. Auden, Chester Kallman, William Hogarth 
Answer:
 person: W. H. Auden; person: Chester Kallman; person: William Hogarth