{
  "title": "Rolled steel shape data for AI section and source review",
  "source_page": "https://fiund.com/industries/rolled-steel-shape-section-revision-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "The drawing changes mid-run, but one shape predates it",
    "context": "Original paper profiles show two fictional section variants without structural values.",
    "records": [
      [
        "1",
        "Section register",
        "S2 rev A before run marker 80, rev B from 80."
      ],
      [
        "2",
        "Run sheet",
        "Part X marker 76; part Y marker 82."
      ],
      [
        "3",
        "Photo overlay",
        "X matches A geometry; Y also matches A."
      ]
    ],
    "question": "Which part is inconsistent with its effective drawing?",
    "answer": "Y is inconsistent because records 1 and 2 assign rev B at marker 82, but record 3 shows A geometry. X matches its own earlier A reference at 76. Preserve each part's run marker when labeling the comparison.",
    "failureModes": [
      "Applying the latest revision to the entire run",
      "Treating identical shapes as equally correct regardless of effectivity"
    ],
    "fields": [
      [
        "run_marker",
        "Locates each item relative to the change"
      ],
      [
        "section_revision",
        "Selects its drawing"
      ],
      [
        "profile_observation",
        "Preserves actual geometry class"
      ]
    ],
    "holdout": "Use two lines with distinct effectivity markers and require line-specific revision lookup.",
    "boundary": "No actual steel design sections, load ratings, processing controls or engineering decisions."
  }
}