{
  "title": "Oil change service and used-oil records for AI",
  "source_page": "https://fiund.com/industries/quick-lube-service-basis-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A shift's used-oil total cannot identify a job's fill product",
    "context": "Original dummy tickets and a practice shift ledger use artificial product labels and quantities. No vehicle, actual oil handling, service history or disposal instruction is involved.",
    "records": [
      [
        "QL1",
        "Job J1 ticket",
        "Fill product A, 4 practice units U."
      ],
      [
        "QL2",
        "Job J2 ticket",
        "Fill product B, 5 U. No relation says A and B are interchangeable."
      ],
      [
        "QL3",
        "Shift collection record",
        "Removed material 7 units V for the whole shift. No J1/J2 breakdown or U-to-V conversion supplied."
      ]
    ],
    "question": "Which fill product and quantity are documented for J1, and can the shift record establish J1's removed quantity or a combined fill-and-waste total?",
    "answer": "QL1 directly documents J1's product A and four U fill quantity. QL2 concerns J2 and a different product. QL3 covers shift-wide removed material in V, with neither job allocation nor a compatible unit conversion. It cannot establish J1's removed amount or be added to fill quantities as one meaningful total. Preserve job, product, flow direction, unit and reporting scope separately.",
    "failureModes": [
      "Allocating a shift aggregate to a specific job without a breakdown.",
      "Adding unlike units and different material-flow stages into a single quantity."
    ],
    "fields": [
      [
        "Job and fill-product identity",
        "Defines the service-ticket claim."
      ],
      [
        "Fill versus removed-material basis",
        "Separates distinct flows."
      ],
      [
        "Unit and shift allocation",
        "Makes unsupported arithmetic explicit."
      ]
    ],
    "holdout": "Provide a compatible conversion for V but still no job-level breakdown. Require the model to resolve units without inventing a J1 allocation.",
    "boundary": "Use fabricated records and inert props. Exclude plates, service histories, payments and footage of actual oil handling."
  }
}