Disambiguation evidence for Amelia in Verdi's Un ballo in maschera via surface form

"Amelia in Verdi's Un ballo in maschera"

Triples (1)

Triples where some other subject referred to this entity as "Amelia in Verdi's Un ballo in maschera".

Joan Sutherland → debutRole →
"Amelia in Verdi's Un ballo in maschera"
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