15106
Through negotiations by  his  son Nelson in 1946 he bought for $ 8.5 million - from the major  New York  real estate developer William Zeckendorf - and then donated the land along the East River in Manhattan upon which the United Nations headquarters was built .
 cities of residence: his, New York
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:
 cities of residence: his, New York