{
  "id": "urn:ngsi-ld:Milestone:heavy-rain-2026-07-initial",
  "type": "Milestone",
  "name": "初動対応（発災から 72 時間）",
  "description": "被害状況の確認と通行規制の設定を終えるまでの段階",
  "project": "urn:ngsi-ld:Project:heavy-rain-2026-07",
  "start": "2026-07-08T07:00:00+09:00",
  "due": "2026-07-11",
  "milestoneStatus": "open",
  "source": "https://tracker.example.jp/versions/7",
  "externalId": "7",
  "dateCreated": "2026-07-08T06:30:00+09:00",
  "dateModified": "2026-07-08T09:15:00+09:00"
}