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We did the trials to make sure that the container and the electronic pack would not be damaged or give false alarms , '' said David Wong , chief technical officer at the company , which is based in Shenzhen , near Hong Kong . ''
 location contains: Hong Kong, Shenzhen
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:  Hong Kong, Shenzhen 
Answer:
 location contains: Hong Kong, Shenzhen