{
  "cell_id": "q100_hard_negative_k4",
  "doc_id": "StudentSupport_Guidebook.pdf",
  "question": "According to the PDF source, what is the telephone number of Prime Taxi?",
  "answer": "+65 6778-0808",
  "answer_format": "Str",
  "condition": "hard_negative",
  "k": 4,
  "source_position": "first",
  "modality": "image",
  "dpi": 150,
  "image_docs": [
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      "role": "source",
      "doc": "StudentSupport_Guidebook",
      "pages": 44,
      "image_dir": "images/StudentSupport_Guidebook"
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    {
      "role": "hn_1",
      "doc": "web_c4b89ce88439ccc8",
      "pages": 20,
      "image_dir": "images/web_c4b89ce88439ccc8"
    },
    {
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      "doc": "eb30c70c153e1dbc5a0ea9bd5a306750a2b4ebf7",
      "pages": 10,
      "image_dir": "images/eb30c70c153e1dbc5a0ea9bd5a306750a2b4ebf7"
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      "doc": "resize_r1_36",
      "pages": 31,
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      "doc": "resize_r1_20",
      "pages": 11,
      "image_dir": "images/resize_r1_20"
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  "n_images": 116
}