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This month  Martin Barre  could n't make the European tour and was temporarily replaced by Florian Opahle also of Ian's solo band meaning that the band billed as  Jethro Tull  on this month's European tour was actually Ian Anderson accompanied by his solo band .
 alternate names: Martin Barre, Jethro Tull
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:
 alternate names: Martin Barre, Jethro Tull