138804
History Beginnings Karl Thomas was a drummer and in high school when he met and formed a metal band ( called Xygen ) with Rob Swire and Gareth McGrillen ( the two who would later become Pendulum and eventually Knife Party ) and Jay Burns .
 person: Rob Swire; person: Gareth McGrillen
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: Rob Swire, Gareth McGrillen 
Answer:
 person: Rob Swire; person: Gareth McGrillen