21819
Keith Walker , a Camden businessman who recently lost a race for mayor , said yesterday that he was organizing a team of retired police officers and childhood experts to evaluate the case , which is already under review by the Camden County prosecutor 's office . ''
 location contains: Camden County, Camden
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:  Camden County, Camden 
Answer:
 location contains: Camden County, Camden