17972
The officials said 6,631 conversions of housing units from commercial to residential , two-thirds of them in Lower Manhattan , plus an increase in new construction led to a 4.5 percent increase in Manhattan 's population since 2000 , or 69,100 residents .
 neighborhood of: Lower Manhattan, Manhattan; location contains: Manhattan, Lower Manhattan
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:
 neighborhood of: Lower Manhattan, Manhattan; location contains: Manhattan, Lower Manhattan