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IMCLONE CHAIRMAN RESIGNS The embattled chairman of ImClone Systems and another director have resigned , a development that moves the investor Carl Icahn closer to his goal of gaining control of the company 's board .
 Carl Icahn, ImClone Systems
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:
 Carl Icahn, ImClone Systems