8947
The City of Charlotte , N.C. , requires developers to preserve 10 percent of a subdivision 's area in trees and also save all '' heritage trees '' approaching the size of those in the North Carolina state list of '' champion trees . ''
 location contains: North Carolina, Charlotte
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:  North Carolina, Charlotte 
Answer:
 location contains: North Carolina, Charlotte