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However , she had a wide repertoire which included florid coloratura soprano roles such as the Queen of the Night in The Magic Flute and Lucia in Lucia di Lammermoor ; the dramatic soprano Verdi heroines such as the title role in Aida and Amelia in Ballo in maschera ; and even the Wagnerian roles of Sieglinde in Die Walküre and Isolde in Tristan und Isolde .
 Verdi
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Verdi