863
Raised as an Australian Imperial Force ( AIF ) battalion in March 1915 as part of the 5th Brigade of the  2nd Division  the 18th Battalion was formed at Liverpool  New South Wales  .
 city of headquarters: 2nd Division, New South Wales
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:
 city of headquarters: 2nd Division, New South Wales