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Handley is a member of the Internet Engineering Task Force ( IETF ) Routing Area Directorate and the Transport Area Directorate .
 person: Handley; organization: Internet Engineering Task Force
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: Handley, Internet Engineering Task Force 
Answer:
 person: Handley; organization: Internet Engineering Task Force