{
  "title": "Drywall and insulation pre-close evidence for AI",
  "source_page": "https://fiund.com/industries/drywall-insulation-preclose-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A closed-wall photo cannot recover a missing pre-close view",
    "context": "Two tabletop cavity props, C-A and C-B, are photographed before or after paper covers are fitted. The task is identity and visibility tracking, with no assessment of code compliance.",
    "records": [
      [
        "DW1",
        "Labeled pre-close image",
        "C-A label readable; blue practice insert visible inside the cavity."
      ],
      [
        "DW2",
        "Labeled post-close image",
        "C-A label readable; opaque cover hides the insert."
      ],
      [
        "DW3",
        "Unassigned pre-close image",
        "A blue insert is visible, but cavity label is cropped. C-B has a post-close photo only."
      ]
    ],
    "question": "Which cavity has an identified pre-close observation of the blue insert, and can the unassigned image establish C-B's concealed contents?",
    "answer": "DW1 provides an identified pre-close observation of a blue insert in C-A. DW2 shows C-A after cover without independently showing its concealed contents. DW3 lacks the identity link needed to assign it to C-B; similarity is insufficient. C-B's covered view therefore does not establish the insert behind it. Preserve the difference between observed earlier, visible now and unresolved identity.",
    "failureModes": [
      "Describing concealed contents as currently visible in a post-close image.",
      "Assigning the only unassigned pre-close image to C-B by elimination."
    ],
    "fields": [
      [
        "Cavity identity and label visibility",
        "Controls attribution before comparing appearances."
      ],
      [
        "Capture stage and sequence",
        "Separates pre-close from post-close evidence."
      ],
      [
        "Observed versus concealed region",
        "Prevents an unseen condition from becoming a visible fact."
      ]
    ],
    "holdout": "Supply a valid image manifest linking DW3 to C-A rather than C-B. Require the answer to retain C-B's evidence gap despite the additional image.",
    "boundary": "Use approved training props and fictional locations. Do not include occupied buildings, proprietary wall details, client plans or actual installation decisions."
  }
}