2513
Due to the 2011 Libyan civil war all flight were suspended however since the end of the conflict  Libyan Airlines  have resumed service it is currently unknown if Air  Libya  Tibesti is using the airport .
 country of headquarters: Libyan Airlines, Libya
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: Libyan Airlines, Libya