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The screenplay was written by Hans Janowitz , who collaborated with Carl Mayer on the script for " The Cabinet of Dr. Caligari " ( 1919 ) .
 person: Hans Janowitz; person: Carl Mayer
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 Janowitz, Carl Mayer 
Answer:
 person: Hans Janowitz; person: Carl Mayer