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IMF head Christine Lagarde and Federal Reserve Chair Janet Yellen discuss economics , central banking . Watch LIVE : http://t.co/f7lZS47Vsx
 organization: IMF; person: Christine Lagarde; organization: Federal Reserve; person: Janet Yellen
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: IMF, Christine Lagarde, Federal Reserve, Janet Yellen 
Answer:
 organization: IMF; person: Christine Lagarde; organization: Federal Reserve; person: Janet Yellen