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It quickly lets us know that this is the behind-the-scenes story of how Edward R. Murrow and CBS exposed the red-baiting tactics of Sen. Joseph R. McCarthy -LRB- although someone ignorant of that history will be left wondering , '' Huh ? '' -RRB-
 person of company: Edward R. Murrow, CBS
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Edward R. Murrow, CBS 
Answer:
 person of company: Edward R. Murrow, CBS