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He received this appointment by the President of  Mexico   Antonio de Santa Anna  and served from 30 December 1842 until his ouster in 1845 .
 employee of: Mexico, Antonio de Santa Anna
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, Antonio de Santa Anna 
Answer:
 employee of: Mexico, Antonio de Santa Anna