603
Well-known examples include Beovoz in Belgrade Serbia S-Bahn in Germany German-speaking areas of Switzerland and Austria Proastiakos in Greece RER in France suburban lines in Milan ( Italy ) in Spain   in Budapest  Hungary  .
 country of headquarters: , Hungary
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:
 country of headquarters: , Hungary