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Career Swenson has appeared on many opera stages , including the Opéra National de Paris , the Royal Opera House at Covent Garden , the Metropolitan Opera , the Berlin State Opera , the Grand Théâtre de Genève , the Hamburg State Opera , the Bavarian State Opera and the Chicago Lyric Opera .
 Swenson, Opéra National de Paris, Royal Opera House, Metropolitan Opera, Opera, Hamburg State Opera, Opera, Chicago Lyric Opera
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Swenson, Opéra National de Paris, Royal Opera House, Metropolitan Opera, Opera, Hamburg State Opera, Opera, Chicago Lyric Opera