9069
The first four aircraft will be built by Eurocopter with the remaining 16 being built by  RUAG  Aerospace in  Alpnach  Switzerland and deliveries expected to be completed between March 2008 and December 2009 .
 city of headquarters: RUAG, Alpnach
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: RUAG, Alpnach