613
Son of renowned Iranian academic Seyyed Hossein  Nasr  Vali Nasr was born in Tehran in  1960  went to school in England at age 16 and immigrated to the U.S. after the 1979 Revolution .
 None
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:   
Answer:
 NA: Nasr, 1960