4877
Iran  launched its first space research center on Monday in Tehran in presence of President  Mahmoud Ahmadinejad  the official IRNA news agency reported .
 employee of: Iran, Mahmoud Ahmadinejad
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 employee of: Iran, Mahmoud Ahmadinejad