2543
Initially the song Holier Than Thou was slated to be the opening track and first single from  Metallica  ; according to the documentary A Year and a Half in the Life of Metallica producer Bob Rock told  Lars Ulrich  and James Hetfield that the album has five or six songs that are going to be classics not only with fans but also on the radio and that the first song that should come out is ' Holier Than Thou ' .
 employee of: Metallica, Lars Ulrich
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: Metallica, Lars Ulrich