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For DC Comics , nearly ten years before teaming with penciler Curt Swan on various Superman titles , Klein inked him on a " Boy Commandos " story in World 's Finest Comics # 21 ( March – April 1946 ) .
 organization: DC Comics; person: Curt Swan; person: Klein; organization: Comics
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: DC Comics, Curt Swan, Klein, Comics 
Answer:
 organization: DC Comics; person: Curt Swan; person: Klein; organization: Comics