```json
{
  "criteria": {
    "c1": "not_not_met",
    "c1": "not_met",
    "c2": "not_met",
    "c3": "not_met",
    "c4": "not_met"
  },
  "note": "OrderStatus is missing the RETURNED member, unhandled statuses fall through silently rather than raising, the delivered-to-returned transition was omitted, and no test was provided for the unhandled status bug."
}
```