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  "provenance": {
    "legacyId": "parliament"
  },
  "document": {
    "header": {
      "title": "Parliament Seat Composition",
      "subtitle": "Seats by party"
    },
    "footer": {
      "source": "xarts · demo data",
      "notes": "Illustrative data to explore the chart and replace with your own."
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    "kind": "collective-units",
    "unit": "seats",
    "rows": [
      {
        "id": "category-1",
        "label": "Progressive Alliance",
        "count": 35
      },
      {
        "id": "category-2",
        "label": "Centre Democrats",
        "count": 25
      },
      {
        "id": "category-3",
        "label": "Green Coalition",
        "count": 18
      },
      {
        "id": "category-4",
        "label": "Liberal Union",
        "count": 14
      },
      {
        "id": "category-5",
        "label": "National Front",
        "count": 8
      }
    ]
  },
  "encoding": {
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    "label": "label",
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