7327
With the creation of an Open Skies agreement between Europe and the United States in March 2008  British Airways  started a new subsidiary airline called  OpenSkies  ( previously known as Project Lauren ) .
 subsidiaries: British Airways, OpenSkies
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: British Airways, OpenSkies