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Das Rheingold '' is directed by a pleasantly controversial German-based wunderkind named Stefan Herheim : in his vision , the gods appear as German cultural icons like Nietzsche and Mozart and Bismarck ; Wotan and Alberich are Richard Wagner ; and the Rheingold and Valhalla are Wagner 's real-life Grail , the opera house in Bayreuth .
 Richard Wagner, Bayreuth
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 Richard Wagner, Bayreuth