450
Although the act had given  Treasury  Secretary  Robert Rubin  the authority to carry out the report by selecting new coin designs Secretary Rubin preferred to await congressional action .
 employee of: Treasury, Robert Rubin
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:
 employee of: Treasury, Robert Rubin