{
  "cell_id": "q140_hard_negative_k2",
  "doc_id": "formwork-150318073913-conversion-gate01_95.pdf",
  "question": "Is 20mm Sheeting or 25mm Sheeting an appropriate size for timber formwork?",
  "answer": "25mm Sheeting",
  "answer_format": "Str",
  "condition": "hard_negative",
  "k": 2,
  "source_position": "first",
  "modality": "image",
  "dpi": 150,
  "image_docs": [
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      "pages": 60,
      "image_dir": "images/formwork-150318073913-conversion-gate01_95"
    },
    {
      "role": "hn_1",
      "doc": "web_0592b193cfe894c0",
      "pages": 13,
      "image_dir": "images/web_0592b193cfe894c0"
    },
    {
      "role": "hn_2",
      "doc": "web_c285e96d19aa19d0",
      "pages": 11,
      "image_dir": "images/web_c285e96d19aa19d0"
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  "n_images": 84
}