1236
In the  United Kingdom  postbus services by  Royal Mail  began in 1967 to replace rapidly declining local bus and rail services in rural areas and provide a community service .
 country of headquarters: United Kingdom, Royal Mail
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: United Kingdom, Royal Mail