35999
Long before Harbin 's officials were forced to confront the contamination of the city 's water supply , however , they had embarked on a radical step , one increasingly common among cities in China : they had begun efforts to move the center of the city north , across the winding Songhua , to a large plot of farm land .
 location contains: China, Harbin
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  China, Harbin 
Answer:
 location contains: China, Harbin