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During his work as a physician , Wersich founded a theater production company for the Altonaer Theater , STAITSCH TeaterbetriebsGmbH , for which he acted as managing partner until 2004 .
 person: Wersich
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: Wersich 
Answer:
 person: Wersich