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It was at Pratt that he received his first big break in the theater industry , as his illustration teacher was David Edward Byrd , the man who designed the poster art for the original productions of the musicals Follies and Godspell .
 organization: Pratt; person: David Edward Byrd
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: Pratt, David Edward Byrd 
Answer:
 organization: Pratt; person: David Edward Byrd