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The Walton Family Foundation , created by Wal-Mart 's founder , Sam Walton , and his wife , increased its annual K-12 giving almost tenfold from 1998 to 2003 , to $ 45 million , mostly to support charter schools and tuition vouchers for low-income students .
 Sam Walton, Wal-Mart; Wal-Mart, Sam Walton
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:
 Sam Walton, Wal-Mart; Wal-Mart, Sam Walton