15201
In two parts of England local government agencies are responsible : in Merseyside the  Merseyside Passenger Transport Executive  lets the Merseyrail franchise while Transport for  London  oversees the new London Overground franchise .
 city of headquarters: Merseyside Passenger Transport Executive, London
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: Merseyside Passenger Transport Executive, London