161
AEP was delivered by the  Space and Missile Systems Center  's GPS Wing to the 50th  Space  Wing to replace the legacy 1970s-era mainframe computer at Schriever AFB Colo .
 subsidiaries: Space and Missile Systems Center, Space
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: Space and Missile Systems Center, Space