{
  "output": "calfShields",
  "width": 3,
  "height": 3,
  "row1": [
    "ingotIron",
    null,
    "ingotIron"
  ],
  "row2": [
    "ingotIron",
    null,
    "ingotIron"
  ],
  "row3": [
    "ingotIron",
    null,
    "ingotIron"
  ]
}