6196
Canada  's federal privacy commissioner is investigating Facebook after  University of Ottawa  law students complained the site breaches the law by disclosing personal information to advertisers without consent .
 country of headquarters: Canada, University of Ottawa
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:
 country of headquarters: Canada, University of Ottawa