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Bieber was discovered in 2008 by American talent manager Scooter Braun , who came across Bieber 's videos on YouTube and later became his manager .
 person: Bieber; person: Scooter Braun; person: Bieber; organization: YouTube
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: Bieber, Scooter Braun, Bieber, YouTube 
Answer:
 person: Bieber; person: Scooter Braun; person: Bieber; organization: YouTube