3687
The University of Sonora (  Universidad de Sonora  abbreviated as Unison ) is located in the state of Sonora  Mexico  .
 country of headquarters: Universidad de Sonora, Mexico
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: Universidad de Sonora, Mexico