{
  "question_id": 5120,
  "hints": [
    {
      "hint_level": 1,
      "hint": "Germaine = z."
    },
    {
      "hint_level": 2,
      "hint": "Sister = z + 2."
    },
    {
      "hint_level": 3,
      "hint": "Add: z + z + 2 = 2z + 2."
    }
  ]
}