874
RT @FamousBirthdays : Wishing a Happy 20th Birthday to Justin Bieber @ JustinBieber http://t.co/s2dOvFpGvH
 person: Justin Bieber; 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: Justin Bieber; person: JustinBieber