{
  "wasEndedBy": {
    "ex:end1": {
      "prov:activity": "ex:a1",
      "prov:time": "2012-11-16T17:05:00.000Z"
    }
  },
  "prefix": {
    "ex": "http://example.org/"
  },
  "activity": {
    "ex:a1": [
      {
        "prov:startTime": "2012-11-16T16:05:00.000Z"
      },
      {
        "prov:endTime": "2012-11-16T17:05:00.000Z"
      }
    ]
  }
}