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Comcast , the nation 's biggest cable provider with 21 million subscribers , will make Internet phone service available to all its customers by the end of 2006 , according to the company 's chief executive , Brian L. Roberts , who spoke at an investor conference .
 company major shareholders: Comcast, Brian L. Roberts; person of company: Brian L. Roberts, Comcast; company shareholder among major shareholders: Brian L. Roberts, Comcast
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: 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:
 company major shareholders: Comcast, Brian L. Roberts; person of company: Brian L. Roberts, Comcast; company shareholder among major shareholders: Brian L. Roberts, Comcast