{
  "steps": [
    {
      "id": "S1",
      "parts": [
        "BASE",
        "LEG"
      ],
      "depends_on": []
    },
    {
      "id": "S2",
      "parts": [
        "BOLT"
      ],
      "depends_on": [
        "S1"
      ]
    },
    {
      "id": "S3",
      "parts": [
        "TOP"
      ],
      "depends_on": [
        "S2"
      ]
    },
    {
      "id": "S4",
      "parts": [
        "LID"
      ],
      "depends_on": [
        "S3"
      ]
    }
  ]
}