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 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:  Northeastern University, Boston 
Answer:
 city of headquarters: Northeastern University, Boston