Task input: (themselves, $8, 10$, 33% 25%) Choice: 1 or 2 winning for themselves $8 with 33% chance or $10 with a 25% chance winning for someone else $13 with 80% chance or $10 with a 100% chance Task input: (someone else, $13, $10, 80% 100%) Choice: 1 or 2 ※2つの選択肢、儲かる金額、確率のデータセット •「選択肢集合の中からどれを選択するか」を予測するタスク