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When Senator Bill Frist of Tennessee took on the post in 2002 after the ouster of Senator Trent Lott of Mississippi , Mr. Frist had already indicated that he would leave Congress at the end of 2006 .
 Trent Lott, Mississippi
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:
 Trent Lott, Mississippi