{
  "meta": {
    "scenario": "Lina's clustered-column failure vs the single-encoding Big Idea chart",
    "chapter": "Chapter 3 - Story: From Data to Argument",
    "domain": "B2B marketing-attribution across five channels",
    "synthetic": true,
    "narrative_purpose": {
      "clustered": "Lina's original Monday-afternoon chart: five channels x three metrics (leads, cost per lead, conversion rate) as a clustered column. Every bar is technically correct; the audience cannot say what the chart argues.",
      "focused": "The chart that follows once the Big Idea is written first: a single-encoding sorted bar of ROMI by channel; Paid Social top and Display bottom, both accented, ROMI dollars annotated. The chart answers the VP's Q4-spend question in three seconds."
    }
  },
  "channels": [
    {
      "channel": "Paid Social",
      "leads": 4500,
      "cost_per_lead_usd": 22,
      "conversion_rate_pct": 8.2,
      "romi_ratio": 3.4
    },
    {
      "channel": "Email",
      "leads": 3800,
      "cost_per_lead_usd": 8,
      "conversion_rate_pct": 5.1,
      "romi_ratio": 2.8
    },
    {
      "channel": "Search",
      "leads": 6200,
      "cost_per_lead_usd": 35,
      "conversion_rate_pct": 4.8,
      "romi_ratio": 2.4
    },
    {
      "channel": "Content",
      "leads": 2100,
      "cost_per_lead_usd": 45,
      "conversion_rate_pct": 3.2,
      "romi_ratio": 1.9
    },
    {
      "channel": "Display",
      "leads": 5000,
      "cost_per_lead_usd": 12,
      "conversion_rate_pct": 1.5,
      "romi_ratio": 0.8
    }
  ],
  "big_idea": "Paid Social returns $3.40 per marketing dollar; reallocate Q4 spend from Display, which returns $0.80.",
  "chart_states": {
    "clustered_column": {
      "series_count": 3,
      "channels_shown": 5,
      "argument_visible_in_three_seconds": false,
      "big_idea_in_title": false
    },
    "focused_bar": {
      "series_count": 1,
      "channels_shown": 5,
      "argument_visible_in_three_seconds": true,
      "big_idea_in_title": true,
      "encoding": "ROMI ratio",
      "sort": "descending",
      "accents": [
        "Paid Social",
        "Display"
      ]
    }
  },
  "_source_sha256": "5d97e533b65cd802f0d998552134e5f4ba521eb6de0142c584a35c8e80a30c36",
  "_generated_by": "generate-lina-channel.mjs"
}