{
  "$schema": "urn:prism:schema:v1:spec",
  "title": "Customer revenue distribution (log scale)",
  "description": "Revenue spans 4 orders of magnitude; log scale reveals long-tail.",
  "data": {
    "values": [
      {"customer": "A", "revenue": 12},
      {"customer": "B", "revenue": 95},
      {"customer": "C", "revenue": 840},
      {"customer": "D", "revenue": 2100},
      {"customer": "E", "revenue": 8400},
      {"customer": "F", "revenue": 31000},
      {"customer": "G", "revenue": 96000}
    ]
  },
  "mark": "bar",
  "encoding": {
    "x": {"field": "customer", "type": "nominal"},
    "y": {"field": "revenue", "type": "quantitative", "scale": {"type": "log"}}
  }
}