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To promote the album , the band - with Keri Kelli on rhythm guitar - embarked on an extensive world tour in support of AC / DC in the summer of 2000 , followed by their own headlining theater tour .
 person: Keri Kelli; organization: AC / DC
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: Keri Kelli, AC / DC 
Answer:
 person: Keri Kelli; organization: AC / DC