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Zahi Hawass , secretary general of antiquities in Egypt and director of the Giza pyramids excavations , said in an e-mail message , '' The idea that concrete was used is unlikely and completely unproven . ''
 Egypt, Giza; Zahi Hawass, Egypt
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Egypt, Giza; Zahi Hawass, Egypt