{
  "leg": "C2",
  "item_id": "c2-num-1",
  "category": "arithmetic-date-unit",
  "proxy_item": false,
  "model": "gemma4:31b",
  "think": false,
  "posture": "think:false",
  "reasoning_strength": null,
  "repeat": 2,
  "started_at": "2026-08-26T08:57:06.289181Z",
  "num_predict": 1536,
  "timeout_s": 240,
  "request": {
    "model": "gemma4:31b",
    "stream": false,
    "think": false,
    "options": {
      "num_ctx": 32768,
      "temperature": 0,
      "top_p": 1,
      "num_predict": 1536
    },
    "messages": [
      {
        "role": "user",
        "content": "A club buys 7 double-six domino sets at $12.50 each and pays a flat $9.00 shipping fee on the order. It then returns 2 of the sets and is refunded their purchase price only - the shipping fee is not refunded.\n\nWhat is the club's net cost, in dollars?\n\nWork it out however you like, then end your reply with a final line of exactly this form and nothing after it:\nANSWER: <number>"
      }
    ]
  },
  "answer": "To find the club's net cost, we can calculate the total initial expenditure and then subtract the refund received.\n\n1.  **Initial Cost of Domino Sets:**\n    The club buys 7 sets at $12.50 each.\n    $7 \\times 12.50 = 87.50$\n\n2.  **Total Initial Expenditure:**\n    Add the flat shipping fee to the cost of the sets.\n    $87.50 + 9.00 = 96.50$\n\n3.  **Refund Amount:**\n    The club returns 2 sets and is refunded the purchase price only.\n    $2 \\times 12.50 = 25.00$\n\n4.  **Net Cost:**\n    Subtract the refund from the total initial expenditure.\n    $96.50 - 25.00 = 71.50$\n\nAlternatively, we can calculate the cost of the sets kept plus the shipping fee:\n(5 sets $\\times$ $12.50) + $9.00 shipping = $62.50 + $9.00 = $71.50.\n\nANSWER: 71.50",
  "thinking": "",
  "done_reason": "stop",
  "timing": {
    "wall_s": 10.886,
    "total_duration_s": 10.884,
    "load_duration_s": 0.402,
    "prompt_eval_count": 113,
    "prompt_eval_duration_s": 0.319,
    "eval_count": 271,
    "eval_duration_s": 9.562,
    "eval_tok_s": 28.34
  },
  "error": null
}