cmpl_bql_example_0.json

{
  "Name": "Family graph data example 0",
  "Sources": [
    {
      "ID": "?family",
      "Facts": [
        "/u<joe> \"parent_of\"@[] /u<mary>",
        "/u<joe> \"parent_of\"@[] /u<peter>",
        "/u<peter> \"parent_of\"@[] /u<john>",
        "/u<peter> \"parent_of\"@[] /u<eve>"
      ]
    }
  ],
  "Assertions": [
    {
      "Requires": "finding all Joe's offspring name",
      "Statement": "
      SELECT ?name
      FROM ?family
      WHERE {
        /u<joe> \"parent_of\"@[] ?offspring ID ?name
      }
      ORDER BY ?name;",
      "WillFail": false,
      "MustReturn": [
        {
          "?name": "mary"
        },
        {
          "?name": "peter"
        }
      ]
    },
    {
      "Requires": "finding all Joe's grandchildren",
      "Statement": "
      SELECT ?grandchildren_name
      FROM ?family
      WHERE {
        /u<joe> \"parent_of\"@[] ?offspring .
        ?offspring \"parent_of\"@[] ?grandchildren ID ?grandchildren_name
      }
      ORDER BY ?grandchildren_name;",
      "WillFail": false,
      "MustReturn": [
        {
          "?grandchildren_name": "eve"
        },
        {
          "?grandchildren_name": "john"
        }
      ]
    }
  ]
}