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Several Republican senators -- two of them , Senator Sam Brownback of Kansas and Senator Tom Coburn of Oklahoma , on the Judiciary Committee -- say that unlike their stance during the nomination of Judge John G. Roberts Jr. to be chief justice , they are taking a wait-and-see stance on Ms. Miers .
 Tom Coburn, Oklahoma; Sam Brownback, Kansas
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:
 Tom Coburn, Oklahoma; Sam Brownback, Kansas