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His notable comic-book appearances include Timely Comics ' Marvel Comics # 1 ( Oct. 1939 ) , the first publication of the company that would become Marvel Comics ; and some of the earliest publications of the companies that would become DC Comics .
 organization: Timely Comics; organization: Marvel Comics; organization: Marvel Comics; organization: DC 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: Timely Comics, Marvel Comics, Marvel Comics, DC Comics 
Answer:
 organization: Timely Comics; organization: Marvel Comics; organization: Marvel Comics; organization: DC Comics