{
  "wasAssociatedWith": {
    "ex:assoc8": {
      "prov:activity": "ex:a1",
      "prov:agent": "ex:ag1",
      "prov:role": [
        {
          "$": "someRole",
          "type": "xsd:string"
        },
        {
          "$": "someOtherRole",
          "type": "xsd:string"
        }
      ],
      "prov:plan": "ex:plan1"
    }
  },
  "prefix": {
    "ex": "http://example.org/"
  }
}