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Wal-Mart has never said how many of its employees ' children rely on company insurance , but an internal memo written by M. Susan Chambers , Wal-Mart 's executive vice president for benefits , disclosed that 46 percent of them were uninsured or on Medicaid .
 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