{
  "$schema": "urn:prism:schema:v1:spec",
  "title": "Labelled points",
  "datasets": {
    "scores": {"values": [
      {"brand_id": "alpha", "score": 0.42},
      {"brand_id": "beta", "score": 0.71},
      {"brand_id": "gamma", "score": 0.58},
      {"brand_id": "delta", "score": 0.66}
    ]}
  },
  "layer": [
    {
      "$schema": "urn:prism:schema:v1:spec",
      "data": {"name": "scores"},
      "mark": {"type": "point", "size": 90},
      "encoding": {
        "x": {"field": "brand_id", "type": "nominal"},
        "y": {"field": "score", "type": "quantitative"}
      }
    },
    {
      "$schema": "urn:prism:schema:v1:spec",
      "data": {"name": "scores"},
      "mark": {"type": "text", "font_size": 12, "baseline": "bottom"},
      "encoding": {
        "x": {"field": "brand_id", "type": "nominal"},
        "y": {"field": "score", "type": "quantitative"},
        "text": {"field": "score", "type": "quantitative", "format": ".0%"}
      }
    }
  ]
}