741
On 15 July 1960 at 09:04  Ethiopian Airlines  Flight 372 a C-47 Skytrain registered as ET-T-18 took off from Bulki  Ethiopia  on a short-haul flight to Aba Segud Airport Jimma Ethiopia .
 country of headquarters: Ethiopian Airlines, Ethiopia
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: Ethiopian Airlines, Ethiopia