{
  "title": "Plate work data for AI piece and seam-map review",
  "source_page": "https://fiund.com/industries/plate-work-seam-piece-map-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A joint location names both plates",
    "context": "A cardboard assembly has three numbered asymmetric plates. The seam sketch contains no structural detail.",
    "records": [
      [
        "1",
        "Piece map",
        "P1 meets P2 at J12; P2 meets P3 at J23."
      ],
      [
        "2",
        "Photo overlay",
        "A mark sits where P2's square corner meets P3's triangle."
      ],
      [
        "3",
        "Draft",
        "The image is filed under J12 because P2 is visible."
      ]
    ],
    "question": "Which joint identifier is supported?",
    "answer": "Use J23 because the paired edges in record 2 connect P2 with P3 under record 1. The draft in record 3 keys only on P2, which touches both joints. Preserve both adjacent plate IDs to make the result reproducible.",
    "failureModes": [
      "Joining on just one neighboring piece",
      "Assigning geometry to a hidden edge"
    ],
    "fields": [
      [
        "plate_pair",
        "Identifies both sides of the seam"
      ],
      [
        "corner_landmark",
        "Links image and piece map"
      ],
      [
        "joint_id",
        "Names the resulting location"
      ]
    ],
    "holdout": "Show a close-up where only P2 is identifiable; abstain until the other plate is visible.",
    "boundary": "No actual fabrication drawings, structural details, welding parameters or acceptance claims."
  }
}