{
  "type": "update",
  "updates": [
    {
      "context": [
        {
          "type": "contextDef",
          "subType": "prefix",
          "key": "foaf",
          "value": {
            "type": "term",
            "subType": "namedNode",
            "value": "http://xmlns.com/foaf/0.1/",
            "loc": {
              "sourceLocationType": "source",
              "start": 14,
              "end": 42
            }
          },
          "loc": {
            "sourceLocationType": "source",
            "start": 0,
            "end": 42
          }
        }
      ],
      "operation": {
        "type": "updateOperation",
        "subType": "modify",
        "insert": [],
        "delete": [
          {
            "type": "pattern",
            "subType": "bgp",
            "triples": [
              {
                "type": "triple",
                "subject": {
                  "type": "term",
                  "subType": "variable",
                  "value": "person",
                  "loc": {
                    "sourceLocationType": "source",
                    "start": 85,
                    "end": 92
                  }
                },
                "predicate": {
                  "type": "term",
                  "subType": "variable",
                  "value": "property",
                  "loc": {
                    "sourceLocationType": "source",
                    "start": 93,
                    "end": 102
                  }
                },
                "object": {
                  "type": "term",
                  "subType": "variable",
                  "value": "value",
                  "loc": {
                    "sourceLocationType": "source",
                    "start": 103,
                    "end": 109
                  }
                },
                "loc": {
                  "sourceLocationType": "source",
                  "start": 85,
                  "end": 109
                }
              }
            ],
            "loc": {
              "sourceLocationType": "source",
              "start": 85,
              "end": 109
            }
          }
        ],
        "graph": {
          "type": "term",
          "subType": "namedNode",
          "value": "http://example/addresses",
          "loc": {
            "sourceLocationType": "source",
            "start": 49,
            "end": 75
          }
        },
        "where": {
          "type": "pattern",
          "subType": "group",
          "patterns": [
            {
              "type": "pattern",
              "subType": "bgp",
              "triples": [
                {
                  "type": "triple",
                  "subject": {
                    "type": "term",
                    "subType": "variable",
                    "value": "person",
                    "loc": {
                      "sourceLocationType": "source",
                      "start": 121,
                      "end": 128
                    }
                  },
                  "predicate": {
                    "type": "term",
                    "subType": "variable",
                    "value": "property",
                    "loc": {
                      "sourceLocationType": "source",
                      "start": 129,
                      "end": 138
                    }
                  },
                  "object": {
                    "type": "term",
                    "subType": "variable",
                    "value": "value",
                    "loc": {
                      "sourceLocationType": "source",
                      "start": 139,
                      "end": 145
                    }
                  },
                  "loc": {
                    "sourceLocationType": "source",
                    "start": 121,
                    "end": 145
                  }
                },
                {
                  "type": "triple",
                  "subject": {
                    "type": "term",
                    "subType": "variable",
                    "value": "person",
                    "loc": {
                      "sourceLocationType": "noMaterialize"
                    }
                  },
                  "predicate": {
                    "type": "term",
                    "subType": "namedNode",
                    "value": "givenName",
                    "loc": {
                      "sourceLocationType": "source",
                      "start": 148,
                      "end": 162
                    },
                    "prefix": "foaf"
                  },
                  "object": {
                    "type": "term",
                    "subType": "literal",
                    "value": "Fred",
                    "loc": {
                      "sourceLocationType": "source",
                      "start": 163,
                      "end": 169
                    }
                  },
                  "loc": {
                    "sourceLocationType": "source",
                    "start": 148,
                    "end": 169
                  }
                }
              ],
              "loc": {
                "sourceLocationType": "source",
                "start": 121,
                "end": 169
              }
            }
          ],
          "loc": {
            "sourceLocationType": "source",
            "start": 119,
            "end": 171
          }
        },
        "from": {
          "type": "datasetClauses",
          "clauses": [],
          "loc": {
            "sourceLocationType": "noMaterialize"
          }
        },
        "loc": {
          "sourceLocationType": "source",
          "start": 44,
          "end": 171
        }
      }
    }
  ],
  "loc": {
    "sourceLocationType": "inlinedSource",
    "newSource": "PREFIX foaf:  <http://xmlns.com/foaf/0.1/>\n\nWITH <http://example/addresses>\nDELETE { ?person ?property ?value } \nWHERE { ?person ?property ?value ; foaf:givenName 'Fred' } \n",
    "start": 0,
    "end": 9007199254740991,
    "loc": {
      "sourceLocationType": "source",
      "start": 0,
      "end": 171
    },
    "startOnNew": 0,
    "endOnNew": 171
  }
}