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Rolls-Royce and Pratt Whitney also have a joint venture International Aero Engines specializing in engines for the Airbus A320 family whilst finally Pratt Whitney and  General Electric  have a joint venture  Engine Alliance  marketing a range of engines for aircraft such as the Airbus A380 .
 subsidiaries: General Electric, Engine Alliance
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: General Electric, Engine Alliance