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The new president and chief executive of Wal-Mart International will be Michael T. Duke , currently president and chief executive of Wal-Mart Stores U.S.A. The promotions come with significant challenges and spotlight Mr. Duke and Mr. Menzer as potential successors to H. Lee Scott , Wal-Mart 's chief executive since 2000 . ''
 person of company: Michael T. Duke, Wal-Mart
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:  Michael T. Duke, Wal-Mart 
Answer:
 person of company: Michael T. Duke, Wal-Mart