Her farewell performance in Buenos Aires was as Ellen Orford in "Peter Grimes".

Entity and relation annotations:
id: 0
type: entity
value: text: Buenos Aires
labels: <Location>
id: 1
type: entity
value: text: Ellen Orford
labels: <Person>
id: 2
type: entity
value: text: "Peter Grimes"
labels: <Work_of_art>
type: relation
to_id: 2
labels: Person:is_character_in:Work_of_art
from_id: 1