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He said that he knew his days were numbered at Wal-Mart when his superiors criticized him immediately after he told Michael T. Duke , then a Wal-Mart executive vice president and now the president of the Wal-Mart Stores division , that the company 's monitoring program deserved a D-plus or C-minus .
 person of company: Michael T. Duke, Wal-Mart
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 person of company: Michael T. Duke, Wal-Mart