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WASHINGTON --  National Football League  Commissioner Roger Goodell asked Congress on Tuesday to help overcome what he called discrimination by cable TV companies carrying the league's  NFL Network  .
 subsidiaries: National Football League, NFL Network
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: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 subsidiaries: National Football League, NFL Network