11935
in Computer Science ( 1991 ) from  Northeastern University  (  Boston  MA ) and his Ph.D. in Computer Science ( 1997 ) from the University of Pennsylvania ( Philadelphia PA ) .
 city of headquarters: Northeastern University, Boston
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:
 city of headquarters: Northeastern University, Boston