The couple was dubbed "Gundam Couple" due to Lee Si-young's obsession with Gundam.

Entity and relation annotations:
id: 0
type: entity
value: text: "Gundam Couple"
labels: <Title>
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type: entity
value: text: Lee Si-young
labels: <Person>
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value: text: Gundam
labels: <Production>
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value: text: Gundam
labels: <Production>