{
  "id": "123",
  "instruction_en": "Assume that in January 2002 you enter a “portfolio” by going long ERCOT peak power and short an equal-scale amount of NYMEX natural gas. Over the full year 2002, does this portfolio make or lose money, and what is its nominal return?",
  "source_files": [
    "123_src_0.xlsx"
  ],
  "source_files_urls": [
    "https://huggingface.co/datasets/FinWorkBench/Finch/resolve/main/files/123/123_src_0.xlsx"
  ],
  "task_type": "Calculation",
  "business_type": "Pricing and Valuation, Trading and Risk Management"
}