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Negation War was a comic book series published by CrossGen Comics , and serving as a culmination of the metaplot s of nearly all of CrossGen 's other titles .
 CrossGen Comics, CrossGen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 CrossGen Comics, CrossGen