{
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "datasetTotals": {
      "type": "object",
      "additionalProperties": false,
      "description": "computed totals across all rows in the sheet",
      "properties": {
        "totalProfit": {
          "type": "number",
          "description": "sum of the Profit column across every row"
        },
        "totalUnitsSold": {
          "type": "number",
          "description": "sum of the Units Sold column across every row"
        },
        "rowCount": {
          "type": "integer",
          "description": "number of data rows in the sheet (excluding the header)"
        }
      },
      "required": [
        "totalProfit",
        "totalUnitsSold",
        "rowCount"
      ]
    },
    "governmentSegmentRows": {
      "type": "array",
      "description": "one entry per data row whose Segment is exactly Government; exclude every other segment",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "country": {
            "type": "string",
            "description": "the Country value"
          },
          "product": {
            "type": "string",
            "description": "the Product value"
          },
          "quantitySold": {
            "type": "number",
            "description": "the Units Sold value"
          },
          "grossMarginPct": {
            "type": "number",
            "description": "gross margin percentage computed as (Sales - COGS) / Sales * 100, rounded to one decimal place"
          },
          "totalManufacturingCost": {
            "type": "number",
            "description": "Manufacturing Price multiplied by Units Sold"
          },
          "priceEffectiveDate": {
            "type": [
              "string",
              "null"
            ],
            "description": "the date the product's sale price became effective, only if the dataset has a dedicated price-effective-date column; the transaction Date column is not a price-effective date, so if no such column exists, null"
          }
        },
        "required": [
          "country",
          "product",
          "quantitySold",
          "grossMarginPct",
          "totalManufacturingCost"
        ]
      }
    },
    "mostProfitableProduct": {
      "type": "string",
      "description": "the Product value of the single row with the highest Profit anywhere in the sheet"
    }
  },
  "required": [
    "datasetTotals",
    "governmentSegmentRows",
    "mostProfitableProduct"
  ]
}