{
  "context": [
    {
      "type": "contextDef",
      "subType": "prefix",
      "key": "",
      "value": {
        "type": "term",
        "subType": "namedNode",
        "value": "http://example.com/ns#",
        "loc": {
          "sourceLocationType": "source",
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        }
      },
      "loc": {
        "sourceLocationType": "source",
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  "subType": "select",
  "where": {
    "type": "pattern",
    "subType": "group",
    "patterns": [
      {
        "type": "pattern",
        "subType": "bgp",
        "triples": [
          {
            "type": "triple",
            "subject": {
              "type": "term",
              "subType": "variable",
              "value": "s",
              "loc": {
                "sourceLocationType": "source",
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              }
            },
            "predicate": {
              "type": "term",
              "subType": "namedNode",
              "value": "p",
              "loc": {
                "sourceLocationType": "source",
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                "end": 54
              },
              "prefix": ""
            },
            "object": {
              "type": "term",
              "subType": "triple",
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                "type": "term",
                "subType": "namedNode",
                "value": "a",
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                  "sourceLocationType": "source",
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                },
                "prefix": ""
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                "type": "term",
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                  "sourceLocationType": "source",
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                },
                "prefix": ""
              },
              "object": {
                "type": "term",
                "subType": "variable",
                "value": "C",
                "loc": {
                  "sourceLocationType": "source",
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                  "end": 66
                }
              },
              "loc": {
                "sourceLocationType": "source",
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              }
            },
            "annotations": [],
            "loc": {
              "sourceLocationType": "source",
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            }
          },
          {
            "type": "triple",
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            "predicate": {
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                "type": "term",
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                "value": "s1",
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                "prefix": ""
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                    "sourceLocationType": "source",
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                  },
                  "prefix": ""
                },
                "object": {
                  "type": "term",
                  "subType": "blankNode",
                  "loc": {
                    "sourceLocationType": "source",
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                    "end": 110
                  },
                  "label": "g_0"
                },
                "loc": {
                  "sourceLocationType": "source",
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                }
              },
              "loc": {
                "sourceLocationType": "source",
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            },
            "annotations": [],
            "loc": {
              "sourceLocationType": "source",
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        ],
        "loc": {
          "sourceLocationType": "source",
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      }
    ],
    "loc": {
      "sourceLocationType": "source",
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  },
  "solutionModifiers": {},
  "datasets": {
    "type": "datasetClauses",
    "clauses": [],
    "loc": {
      "sourceLocationType": "noMaterialize"
    }
  },
  "variables": [
    {
      "type": "wildcard",
      "loc": {
        "sourceLocationType": "source",
        "start": 42,
        "end": 43
      }
    }
  ],
  "loc": {
    "sourceLocationType": "inlinedSource",
    "newSource": "PREFIX : <http://example.com/ns#>\n\nSELECT * {\n\n  ?s :p <<(:a :b ?C )>> .\n  ?s\n     :q\n  <<( ?s1 :p <<(:a :b [] )>> )>> .\n}\n",
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    "end": 9007199254740991,
    "loc": {
      "sourceLocationType": "source",
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    },
    "startOnNew": 0,
    "endOnNew": 122
  },
  "type": "query"
}