3409
Arria then studied at the London School of Economics and worked for the Inter-American Development Bank in Washington D.C. until he returned to  Venezuela  in 1969 initially as Director of Tourism in  Rafael Caldera  's Ministry of Development and later as president of the CONAHOTU ( National Corporation of Hotels and Tourism ) .
 employee of: Venezuela, Rafael Caldera
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:
 employee of: Venezuela, Rafael Caldera