8956
The Mi-8 helicopter belonging to  Gazpromavia  a subsidiary of the  Gazprom  energy group stopped responding to radio communications at around 1200 GMT while flying over the northern Komi region .
 subsidiaries: Gazpromavia, Gazprom
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:
 subsidiaries: Gazpromavia, Gazprom