4973
Patterson wrote in August 1845 to  Treasury  Secretary  Robert J. Walker  that Longacre is a gentleman of excellent character highly regarded in this community and has acquired some celebrity as an engraver of copper ; but he is not a Die-Sinker .
 employee of: Treasury, Robert J. Walker
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 J. Walker