{
  "context": [
    {
      "type": "contextDef",
      "subType": "prefix",
      "key": "",
      "value": {
        "type": "term",
        "subType": "namedNode",
        "value": "http://example/",
        "loc": {
          "sourceLocationType": "source",
          "start": 13,
          "end": 30
        }
      },
      "loc": {
        "sourceLocationType": "source",
        "start": 2,
        "end": 30
      }
    }
  ],
  "subType": "select",
  "where": {
    "type": "pattern",
    "subType": "group",
    "patterns": [
      {
        "type": "pattern",
        "subType": "bgp",
        "triples": [
          {
            "type": "triple",
            "subject": {
              "type": "term",
              "subType": "namedNode",
              "value": "order",
              "loc": {
                "sourceLocationType": "source",
                "start": 69,
                "end": 75
              },
              "prefix": ""
            },
            "predicate": {
              "type": "path",
              "loc": {
                "sourceLocationType": "source",
                "start": 76,
                "end": 88
              },
              "items": [
                {
                  "type": "term",
                  "subType": "namedNode",
                  "value": "item",
                  "loc": {
                    "sourceLocationType": "source",
                    "start": 76,
                    "end": 81
                  },
                  "prefix": ""
                },
                {
                  "type": "term",
                  "subType": "namedNode",
                  "value": "price",
                  "loc": {
                    "sourceLocationType": "source",
                    "start": 82,
                    "end": 88
                  },
                  "prefix": ""
                }
              ],
              "subType": "/"
            },
            "object": {
              "type": "term",
              "subType": "variable",
              "value": "x",
              "loc": {
                "sourceLocationType": "source",
                "start": 89,
                "end": 91
              }
            },
            "loc": {
              "sourceLocationType": "source",
              "start": 69,
              "end": 91
            }
          }
        ],
        "loc": {
          "sourceLocationType": "source",
          "start": 69,
          "end": 91
        }
      }
    ],
    "loc": {
      "sourceLocationType": "source",
      "start": 62,
      "end": 95
    }
  },
  "solutionModifiers": {},
  "datasets": {
    "type": "datasetClauses",
    "clauses": [],
    "loc": {
      "sourceLocationType": "noMaterialize"
    }
  },
  "variables": [
    {
      "type": "pattern",
      "subType": "bind",
      "expression": {
        "type": "expression",
        "subType": "aggregate",
        "aggregation": "sum",
        "distinct": false,
        "loc": {
          "sourceLocationType": "source",
          "start": 41,
          "end": 48
        },
        "expression": [
          {
            "type": "term",
            "subType": "variable",
            "value": "x",
            "loc": {
              "sourceLocationType": "source",
              "start": 45,
              "end": 47
            }
          }
        ]
      },
      "variable": {
        "type": "term",
        "subType": "variable",
        "value": "total",
        "loc": {
          "sourceLocationType": "source",
          "start": 52,
          "end": 58
        }
      },
      "loc": {
        "sourceLocationType": "source",
        "start": 40,
        "end": 59
      }
    }
  ],
  "loc": {
    "sourceLocationType": "inlinedSource",
    "newSource": "  PREFIX :   <http://example/>\n  SELECT (sum(?x) AS ?total)\n  { \n    :order :item/:price ?x\n  }\n",
    "start": 0,
    "end": 9007199254740991,
    "loc": {
      "sourceLocationType": "source",
      "start": 2,
      "end": 95
    },
    "startOnNew": 2,
    "endOnNew": 95
  },
  "type": "query"
}