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Vice-President Calvin Coolidge served as honorary chairman of the Advisory Council of Better Homes in America and Secretary of  Commerce   Herbert Hoover  was president of its board of directors .
 Commerce, Herbert Hoover
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Commerce, Herbert Hoover