{
  "title": "Other transportation-equipment data for AI accessory registers",
  "source_page": "https://fiund.com/industries/transport-equipment-unit-accessory-register-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A handle belongs to one cart after a swap",
    "context": "Two paper carts share a model but have individually tagged handles in a fictional ledger.",
    "records": [
      [
        "1",
        "Initial map",
        "Cart C1 has H4; C2 has H7."
      ],
      [
        "2",
        "Swap log",
        "H4 moved from C1 to C2; H7 removed to shelf."
      ],
      [
        "3",
        "Current photo",
        "C1 has no visible handle; C2 tag H4 legible."
      ]
    ],
    "question": "What is the active handle assignment?",
    "answer": "C2 currently carries H4 according to records 2 and 3. H7 is recorded on the shelf, and no active handle assignment remains for C1 in this packet. Preserve the original map as history rather than joining H4 permanently to its first cart.",
    "failureModes": [
      "Using initial ownership as permanent association",
      "Inferring H7 moved to C1 in a one-way swap"
    ],
    "fields": [
      [
        "handle_instance",
        "Tracks a specific accessory"
      ],
      [
        "association_event",
        "Records attach, transfer or removal"
      ],
      [
        "effective_assignment",
        "Shows the current pairing"
      ]
    ],
    "holdout": "Use a simultaneous reciprocal swap with two logged events; track both explicitly.",
    "boundary": "No actual transport equipment, load limits, compatibility promises or service guidance."
  }
}