13572
Last year a United Nations task force , led by the Columbia University economist Jeffrey Sachs , estimated the annual cost of meeting these goals to be $ 121 billion in 2006 , rising to $ 189 billion by 2015 .
 person of company: Jeffrey Sachs, Columbia University
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: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 person of company: Jeffrey Sachs, Columbia University