13818
Microsoft's chief Steve Ballmer said Tuesday it will establish a new research center in Norway after a meeting with Norwegian Prime Minister  Jens Stoltenberg  in  Oslo  according to reports reaching here from Oslo .
 cities of residence: Jens Stoltenberg, Oslo
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:
 cities of residence: Jens Stoltenberg, Oslo