{
  "illustrative": true,
  "article": "/manufacturing/semiconductor-carrier-wafer-events/",
  "assumptions": [
    "Five occupied teaching slots; no real SECS/GEM messages or conformance test.",
    "eventId is a custom stable identity used by this sample.",
    "W03 has a quality hold; W05 lacks completion evidence."
  ],
  "slots": [
    {
      "slot": 1,
      "wafer": "W01"
    },
    {
      "slot": 2,
      "wafer": "W02"
    },
    {
      "slot": 3,
      "wafer": "W03"
    },
    {
      "slot": 4,
      "wafer": "W04"
    },
    {
      "slot": 5,
      "wafer": "W05"
    }
  ],
  "events": [
    {
      "eventId": "W01-start",
      "wafer": "W01",
      "state": "start",
      "attempt": "W01-1"
    },
    {
      "eventId": "W01-end",
      "wafer": "W01",
      "state": "end",
      "attempt": "W01-1"
    },
    {
      "eventId": "W02-start",
      "wafer": "W02",
      "state": "start",
      "attempt": "W02-1"
    },
    {
      "eventId": "W02-end",
      "wafer": "W02",
      "state": "end",
      "attempt": "W02-1"
    },
    {
      "eventId": "W03-start",
      "wafer": "W03",
      "state": "start",
      "attempt": "W03-1"
    },
    {
      "eventId": "W03-end",
      "wafer": "W03",
      "state": "end",
      "attempt": "W03-1"
    },
    {
      "eventId": "W04-start",
      "wafer": "W04",
      "state": "start",
      "attempt": "W04-1"
    },
    {
      "eventId": "W04-end",
      "wafer": "W04",
      "state": "end",
      "attempt": "W04-1"
    },
    {
      "eventId": "W04-end",
      "wafer": "W04",
      "state": "end",
      "attempt": "W04-1"
    },
    {
      "eventId": "W05-start",
      "wafer": "W05",
      "state": "start",
      "attempt": "W05-1"
    }
  ],
  "qualityHeld": [
    "W03"
  ],
  "released": [
    "W01",
    "W02",
    "W04"
  ],
  "expected": {
    "deliveries": 10,
    "uniqueEvents": 9,
    "completed": 4,
    "unknown": [
      "W05"
    ],
    "released": 3
  }
}