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Since Democrats moved the caucus here smack between the Iowa caucus , the first contest of the year , and the New Hampshire primary , Ms. Titus has worked the fund-raising circuit with Gov. Bill Richardson of New Mexico and Senators Russell D. Feingold of Wisconsin and John Kerry of Massachusetts and former Senator John Edwards of North Carolina .
 John Edwards, North Carolina; John Kerry, Massachusetts; Bill Richardson, New Mexico
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:
 John Edwards, North Carolina; John Kerry, Massachusetts; Bill Richardson, New Mexico