74
The next year it merged with the engine and automotive company  Armstrong Siddeley  and its subsidiary  Armstrong Whitworth  Aircraft to form Hawker Siddeley Aircraft .
 subsidiaries: Armstrong Siddeley, Armstrong Whitworth
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Armstrong Siddeley, Armstrong Whitworth 
Answer:
 subsidiaries: Armstrong Siddeley, Armstrong Whitworth