8635
Later cooperation with the East German airline  Interflug  made it possible for this carrier to establish its first-ever scheduled transatlantic service linking  East Berlin  with Havana .
 subsidiaries: Interflug, East Berlin
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: Interflug, East Berlin