5173
He took on a number of patients from Hampstead Garden Suburb at the time an area popular with left wing politicians one of whom  Harold Wilson  went on to become  Prime Minister  of the United Kingdom .
 title of person: Harold Wilson, Prime Minister
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:
 title of person: Harold Wilson, Prime Minister