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Founding Team Phil Zimmermann is the co-founder and president of Silent Circle and the creator of both PGP , the most widely used email encryption software in the world , and the Zfone/ZRTP secure VoIP standard .
 person: Phil Zimmermann; organization: Silent Circle
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: Phil Zimmermann, Silent Circle 
Answer:
 person: Phil Zimmermann; organization: Silent Circle