1209
The  16th Sustainment Brigade  is directly subordinate to the 21st  Theater Sustainment Command  which in turn is subordinate to the Seventh Army United States Army Europe .
 subsidiaries: 16th Sustainment Brigade, Theater Sustainment Command
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: 16th Sustainment Brigade, Theater Sustainment Command