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In June 1952 he was appointed by Prime Minister  David Ben-Gurion  to be the first chairman of the  Israel  Atomic Energy Commission ( IAEC ) where he played a crucial role in leading the Israel nuclear program with Ben-Gurion and Defense Minister Shimon Peres .
 employee of: David Ben-Gurion, Israel
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:  David Ben-Gurion, Israel 
Answer:
 employee of: David Ben-Gurion, Israel