1672
Under the terms of the Treaty of Versailles ( 1919 ) Germany was prohibited from having an air force with the former  German Empire  's   disbandment in 1920 .
 subsidiaries: German Empire, 
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: German Empire, 