2876
Yemen  's national carrier  Yemenia  warned on Tuesday it may reconsider an order to buy 10 Airbus A350s accusing France of not being cooperative over the crash of one of its planes off the Indian Ocean archipelago of Comoros last week .
 country of headquarters: Yemen, Yemenia
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: Yemen, Yemenia