2868
The company's investments include a 71 % stake in de  Mexico  (  Telmex  ) Mexico's # 1 telecom service provider in partnership with Texas-based Inc .
 country of headquarters: Mexico, Telmex
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: Mexico, Telmex