4638
Hans Blix  former head of the  International Atomic Energy Agency  who crossed swords with Washington over the Iraq war said Wednesday he was surprised at new US intelligence seeming to downplay the nuclear threat from Iran .
 employee of: Hans Blix, International Atomic Energy Agency
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
 Entity Pairs:  Hans Blix, International Atomic Energy Agency 
Answer:
 employee of: Hans Blix, International Atomic Energy Agency