{
  "context": [
    {
      "type": "contextDef",
      "subType": "prefix",
      "key": "foaf",
      "value": {
        "type": "term",
        "subType": "namedNode",
        "value": "http://xmlns.com/foaf/0.1/",
        "loc": {
          "sourceLocationType": "source",
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          "end": 43
        }
      },
      "loc": {
        "sourceLocationType": "source",
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      }
    },
    {
      "type": "contextDef",
      "subType": "prefix",
      "key": "",
      "value": {
        "type": "term",
        "subType": "namedNode",
        "value": "http://example.org/",
        "loc": {
          "sourceLocationType": "source",
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        }
      },
      "loc": {
        "sourceLocationType": "source",
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      }
    }
  ],
  "subType": "select",
  "where": {
    "type": "pattern",
    "subType": "group",
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      {
        "type": "pattern",
        "subType": "bgp",
        "triples": [
          {
            "type": "triple",
            "subject": {
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              "subType": "variable",
              "value": "s",
              "loc": {
                "sourceLocationType": "source",
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                "end": 87
              }
            },
            "predicate": {
              "type": "term",
              "subType": "namedNode",
              "value": "knows",
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                "sourceLocationType": "source",
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                "end": 98
              },
              "prefix": "foaf"
            },
            "object": {
              "type": "term",
              "subType": "variable",
              "value": "o",
              "loc": {
                "sourceLocationType": "source",
                "start": 99,
                "end": 101
              }
            },
            "loc": {
              "sourceLocationType": "source",
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            }
          }
        ],
        "loc": {
          "sourceLocationType": "source",
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        }
      }
    ],
    "loc": {
      "sourceLocationType": "source",
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      "end": 103
    }
  },
  "solutionModifiers": {},
  "datasets": {
    "type": "datasetClauses",
    "clauses": [],
    "loc": {
      "sourceLocationType": "noMaterialize"
    }
  },
  "variables": [
    {
      "type": "wildcard",
      "loc": {
        "sourceLocationType": "source",
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        "end": 83
      }
    }
  ],
  "loc": {
    "sourceLocationType": "inlinedSource",
    "newSource": "PREFIX foaf:   <http://xmlns.com/foaf/0.1/>\nPREFIX : <http://example.org/>\nSELECT * {?s foaf:knows ?o } VALUES (?s) { (:a) (:b) }\n\n",
    "start": 0,
    "end": 9007199254740991,
    "loc": {
      "sourceLocationType": "source",
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    },
    "startOnNew": 0,
    "endOnNew": 129
  },
  "type": "query",
  "values": {
    "type": "pattern",
    "subType": "values",
    "variables": [
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        "type": "term",
        "subType": "variable",
        "value": "s",
        "loc": {
          "sourceLocationType": "source",
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          "end": 114
        }
      }
    ],
    "values": [
      {
        "s": {
          "type": "term",
          "subType": "namedNode",
          "value": "a",
          "loc": {
            "sourceLocationType": "source",
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          },
          "prefix": ""
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      },
      {
        "s": {
          "type": "term",
          "subType": "namedNode",
          "value": "b",
          "loc": {
            "sourceLocationType": "source",
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          },
          "prefix": ""
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    ],
    "loc": {
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    }
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}