{
  "$schema": "urn:prism:schema:v1:spec",
  "title": "Brand score by region x brand, faceted",
  "data": {
    "name": "samples",
    "values": [
      {"region": "NA",   "brand": "alpha", "score": 0.42},
      {"region": "NA",   "brand": "beta",  "score": 0.55},
      {"region": "NA",   "brand": "gamma", "score": 0.48},
      {"region": "EU",   "brand": "alpha", "score": 0.31},
      {"region": "EU",   "brand": "beta",  "score": 0.49},
      {"region": "EU",   "brand": "gamma", "score": 0.37},
      {"region": "APAC", "brand": "alpha", "score": 0.51},
      {"region": "APAC", "brand": "beta",  "score": 0.45},
      {"region": "APAC", "brand": "gamma", "score": 0.39}
    ]
  },
  "facet": {
    "row":    {"field": "region", "type": "nominal"},
    "column": {"field": "brand",  "type": "nominal"}
  },
  "spec": {
    "$schema": "urn:prism:schema:v1:spec",
    "mark": "bar",
    "encoding": {
      "x": {"field": "brand", "type": "nominal"},
      "y": {"field": "score", "type": "quantitative"}
    }
  }
}