{
  "form_id": "TDC50-ABCD-v01-RC2",
  "pdf": "TDC50-ABCD-v01-RC2.pdf",
  "layout": "50-ABCD",
  "questions": 50,
  "choices": "ABCD",
  "id_mapping": "numeric3",
  "template_path": "template.json",
  "marker_path": "omr_marker.jpg",
  "raw_id_output": "DriverIDRows",
  "decoded_id_output": "DriverID",
  "id_mapping_path": "../../shared/id_mappings.json",
  "geometry_path": "../../shared/geometry_and_controls.json",
  "blank_policy": "empty string",
  "multiple_mark_policy": "flag ambiguous; do not silently choose"
}