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In addition a drum solo by  Joey Kramer  occurred during the middle of the set and at most concerts Joe Perry performed a duel against the Guitar Hero :  Aerosmith  version of himself like the previous year's Guitar Hero Aerosmith Tour before performing a song in which he sang lead vocals ( either Stop Messin ' Around Red House or Combination ) .
 employee of: Joey Kramer, Aerosmith
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: Joey Kramer, Aerosmith