"Old Money" was the first episode to feature Grampa's full name, Abraham Simpson.

Entity and relation annotations:
id: 0
type: entity
value: text: "Old Money"
labels: <Work_of_art>
id: 1
type: entity
value: text: Abraham Simpson
labels: <Person>
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to_id: 0
labels: Person:is_character_in:Work_of_art
from_id: 1