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" Bye Bye " ( バイバイ ) is the 19th single from Japanese singer Ai Otsuka , and the fourth single to be released from her Love Letter album .
 person: Ai Otsuka
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: Ai Otsuka 
Answer:
 person: Ai Otsuka