{
  "head" : {
    "vars" : [
      "a",
      "b",
      "c"
    ]
  },
  "results" : {
    "bindings": [
      { "a" : {
          "type" : "statement",
          "s" : {
            "type" : "uri",
            "value" : "http://example.org/bob"
          },
          "p" : {
            "type" : "uri",
            "value" : "http://xmlns.com/foaf/0.1/age"
          },
          "o" : {
            "datatype" : "http://www.w3.org/2001/XMLSchema#integer",
            "type" : "literal",
            "value" : "23"
          }
        },
        "b": { 
          "type": "uri",
          "value": "http://example.org/certainty"
        },
        "c" : {
          "datatype" : "http://www.w3.org/2001/XMLSchema#decimal",
          "type" : "literal",
          "value" : "0.9"
        }
      }
    ]
  }
}