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If left to their own means the Lebanese would destroy  Lebanon  said Hilal Khashan professor of political sciences at the  American University of Beirut  .
 country of headquarters: Lebanon, American University of Beirut
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: Lebanon, American University of Beirut