4864
The main line from  Mexico  City to Veracruz was dedicated on January 1 1873 by President  Lerdo de Tejada  ; branches connected Ometusco to Pachuca and Apizaco to Puebla .
 employee of: Mexico, Lerdo de Tejada
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:  Mexico, Lerdo de Tejada 
Answer:
 employee of: Mexico, Lerdo de Tejada