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The Battle of Forum Julii was fought between the armies of the rival Roman emperors Otho and Vitellius forces in early AD 69 .
 person: Otho; person: Vitellius
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: Otho, Vitellius 
Answer:
 person: Otho; person: Vitellius