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@ justinbieber Happy birthday , thanks for everything , you 're my idol , my world , when you 're happy I 'm happy , when you smile i smile i love you
 person: justinbieber
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: justinbieber