4043
In addition he studied at the UCLA California USA as a graduate student  MA  in Economics and MA in political economy from  Boston University  Boston USA in 1977 and Ph.D in economics from Boston University in 1979 .
 None
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:
 NA: MA, Boston University