cmpl_bql_example_2.json

{
  "Name": "Family and car graph data example 2",
  "Sources": [
    {
      "ID": "?family",
      "Facts": [
        "/u<joe>   \"parent_of\"@[] /u<mary>",
        "/u<joe>   \"parent_of\"@[] /u<peter>",
        "/u<peter> \"parent_of\"@[] /u<eve>",
        "/u<mary>  \"parent_of\"@[] /u<john>",
        "/u<mary>  \"parent_of\"@[] /u<anne>",
        "/u<mary>  \"parent_of\"@[] /u<amy>"
      ]
    },
    {
      "ID": "?cars",
      "Facts": [
        "/u<joe>   \"drives\"@[] /c<lexus>",
        "/u<mary>  \"drives\"@[] /c<mazda>",
        "/u<peter> \"drives\"@[] /c<honda>",
        "/u<eve>   \"drives\"@[] /c<acura>",
        "/u<john>  \"drives\"@[] /c<subaru>",
        "/u<anne>  \"drives\"@[] /c<mini>",
        "/u<amy>   \"drives\"@[] /c<subaru>",
        "/u<mike>  \"drives\"@[] /c<volvo>",
        "/u<kim>   \"drives\"@[] /c<toyota>",
        "/u<elon>  \"drives\"@[] /c<tesla>"
      ]
    }
  ],
  "Assertions": [
    {
      "Requires": "finding how many grandchildren does Joe have",
      "Statement": "
      SELECT ?grandparent_name, COUNT(?grandchildren) AS ?number_of_grandchildren
      FROM ?family
      WHERE {
        /u<joe> AS ?grandparent ID ?grandparent_name \"parent_of\"@[] ?offspring .
        ?offspring                                     \"parent_of\"@[] ?grandchildren
      }
      GROUP BY ?grandparent_name;",
      "WillFail": false,
      "MustReturn": [
        {
          "?grandparent_name":	"joe",
          "?number_of_grandchildren":	"\"4\"^^type:int64"
        }
      ]
    },
    {
      "Requires": "finding the different brands of car manufactures do we know",
      "Statement": "
      SELECT ?manufacturer
      FROM ?cars
      WHERE {
        ?owner \"drives\"@[] ?car ID ?manufacturer
      }
      GROUP BY ?manufacturer;",
      "WillFail": false,
      "MustReturn": [
        {
          "?manufacturer":	"acura"
        },
        {
          "?manufacturer":	"honda"
        },
        {
          "?manufacturer":	"lexus"
        },
        {
          "?manufacturer":	"mazda"
        },
        {
          "?manufacturer":	"mini"
        },
        {
          "?manufacturer":	"subaru"
        },
        {
          "?manufacturer":	"tesla"
        },
        {
          "?manufacturer":	"toyota"
        },
        {
          "?manufacturer":	"volvo"
        }
      ]
    },
    {
      "Requires": "finding what cars does Joe's grandchildren drive in descending order?",
      "Statement": "
      SELECT ?manufacturer
      FROM ?family, ?cars
      WHERE {
        /u<joe>        \"parent_of\"@[] ?offspring .
        ?offspring     \"parent_of\"@[] ?grandchildren .
        ?grandchildren \"drives\"@[] ?car ID ?manufacturer
      }
      GROUP BY ?manufacturer
      ORDER BY ?manufacturer DESC;",
      "WillFail": false,
      "MustReturn": [
        {
          "?manufacturer":	"subaru"
        },
        {
          "?manufacturer":	"mini"
        },
        {
          "?manufacturer":	"acura"
        }
      ]
    },
    {
      "Requires": "finding any unique owner and manufacture, list the manufacture in descending order, and for each manufacture order the owners in ascending order",
      "Statement": "
      SELECT ?manufacturer, ?owner
      FROM ?family, ?cars
      WHERE {
        ?owner_node ID ?owner \"drives\"@[] ?car ID ?manufacturer
      }
      GROUP BY ?owner, ?manufacturer
      ORDER BY ?manufacturer DESC, ?owner ASC;",
      "WillFail": false,
      "MustReturn": [
        {
          "?manufacturer":	"volvo",
          "?owner": "mike"
        },
        {
          "?manufacturer":	"toyota",
          "?owner": "kim"
        },
        {
          "?manufacturer":	"tesla",
          "?owner": "elon"
        },
        {
          "?manufacturer":	"subaru",
          "?owner": "amy"
        },
        {
          "?manufacturer":	"subaru",
          "?owner": "john"
        },
        {
          "?manufacturer":	"mini",
          "?owner": "anne"
        },
        {
          "?manufacturer":	"mazda",
          "?owner": "mary"
        },
        {
          "?manufacturer":	"lexus",
          "?owner": "joe"
        },
        {
          "?manufacturer":	"honda",
          "?owner": "peter"
        },
        {
          "?manufacturer":	"acura",
          "?owner": "eve"
        }
      ]
    },
    {
      "Requires": "finding the manufactures in descending order by number of owners",
      "Statement": "
      SELECT ?manufacturer, COUNT(?owner) AS ?owners
      FROM ?family, ?cars
      WHERE {
        ?owner_node ID ?owner \"drives\"@[] ?car ID ?manufacturer
      }
      GROUP BY ?manufacturer
      ORDER BY ?owners DESC, ?manufacturer DESC;",
      "WillFail": false,
      "MustReturn": [
        {
          "?manufacturer": "subaru",
          "?owners":	"\"2\"^^type:int64"
        },
        {
          "?manufacturer": "volvo",
          "?owners": "\"1\"^^type:int64"
        },
        {
          "?manufacturer": "toyota",
          "?owners":	"\"1\"^^type:int64"
        },
        {
          "?manufacturer": "tesla",
          "?owners": "\"1\"^^type:int64"
        },
        {
          "?manufacturer": "mini",
          "?owners": "\"1\"^^type:int64"
        },
        {
          "?manufacturer": "mazda",
          "?owners": "\"1\"^^type:int64"
        },
        {
          "?manufacturer": "lexus",
          "?owners": "\"1\"^^type:int64"
        },
        {
          "?manufacturer": "honda",
          "?owners": "\"1\"^^type:int64"
        },
        {
          "?manufacturer": "acura",
          "?owners": "\"1\"^^type:int64"
        }
      ]
    }
  ]
}