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In the confidential memo sent to Wal-Mart 's board last year , M. Susan Chambers , who was recently promoted to be Wal-Mart 's executive vice president in charge of human resources , questioned whether it was cost-efficient to employ longtime workers . ''
 person of company: M. Susan Chambers, Wal-Mart; person of company: M. Susan Chambers, 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: M. Susan Chambers, Wal-Mart; person of company: M. Susan Chambers, Wal-Mart