2017
But it has had a number of fatal accidents the deadliest of which was a crash of  Slovenia  's  Adria Airways  flight in Corsica in 1981 when all 180 people on board perished .
 country of headquarters: Slovenia, Adria Airways
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:  Slovenia, Adria Airways 
Answer:
 country of headquarters: Slovenia, Adria Airways